HETDEX AGN Catalog 1

import os.path as op
import numpy as np
from astropy.io import ascii, fits
from astropy.io.fits import getdata
from astropy.table import Table, Column,join

# fill in the path to the HETDEX AGN Catalog 1 file

path_to_agn1 = "/home/jovyan/Hobby-Eberly-Public/HETDEX/catalogs/agn_catalog_v1.0/"

if op.exists(path_to_agn1):
    pass
else:
    path_to_agn1 = "/corral-repl/utexas/Hobby-Eberly-Telesco/public/HETDEX/catalogs/agn_catalog_v1.0/"

Check basic info of the fits file

There are six extensions, 1 & 4 are table extensions, 2,3 & 5,6 are image extensions for spectra and their errors.

There are three major differences between ext2&3 and ext5&6.

(1) We provide two types of spectra with their errors in ext 2&3 and ext5&6: As an IFU survey, some spacially extended AGNs can be spacially resolved with multiple detections in the hetdex catalog. We do flux weighted friend-of-friend grouping for all AGN detectids with linking length of delta_r=5 arcsec, and delta_redshift = 0.1 to make the unqiue AGN catalog (extension 1). For each AGN, we pick up the detectid closest to the fof center as detectid_best.

ext 2&3 are the spectra for the detectid_best in the hetdex catalog.
ext5&6 are extracted spectra at the flux weighted friend-of-friend center.

(2) Aonther difference between ext2&3 and ext5&6 is the number of rows are different.
ext2&3 have 5322 rows, one row for one agn, arranged in the same order with extension 1.
ext5&6 have 6004 rows. This is because there are some AGNs that have repeat observations (identified by “shotid” in the table of extension 4). We provide all the spectra for repeated observations in ext 5&6. In the table of extension 4, each observation has one row, and the row number of ext5&6 are arranged following extension4.

(3) A minor difference is:
ext2&3 spectra with errors are applied with universal extinction correction of E(B-V)=0.02.
ext5&6 are raw data with no extinction applied.
The extinction correction only makes a <10% difference.

fname = op.join( path_to_agn1, 'hetdex_agn.fits')
hdul = fits.open(fname)
hdul.info()

Filename: /corral-repl/utexas/Hobby-Eberly-Telesco/public/HETDEX/catalogs/agn_catalog_v1.0/hetdex_agn.fits
No.    Name      Ver    Type      Cards   Dimensions   Format
PRIMARY       1 PrimaryHDU       4   ()      
basic_info    1 BinTableHDU    735   5322R x 159C   [K, E, E, E, E, K, 10A, K, K, E, E, E, K, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, 38A, E, E, E, E, 16A, E, E, E, E, 16A, E, E, E, E, 16A, E, 15A, E, E, K, K, K, E, K, E]   
flux_array    1 ImageHDU        11   (1036, 5322)   float32   
error_array    1 ImageHDU        11   (1036, 5322)   float32   
repeat_info    1 BinTableHDU     15   6004R x 3C   [K, K, K]   
flux_array_repeat    1 ImageHDU        11   (1036, 6004)   float32   
error_array_repeat    1 ImageHDU        11   (1036, 6004)   float32   

Read extension 1 as a table

extension 1 has the basic information for each unique AGN, one row per AGN.

agn = Table.read( fname, format = 'fits', hdu = 1 )
agn

Table length=5322

agnid	ra	dec	z	z_er	zflag	field	nshots	detectid_best	ra_best	dec_best	roff	nmem	alpha	alpha_er	fpl0	fpl0_er	slope	slope_er	intercept	intercept_er	L1350	L1350_er	L1450	L1450_er	L3000	L3000_er	L5100	L5100_er	fwhm_LyA	fwhm_LyA_er	ew_LyA	ew_LyA_er	flux_LyA	flux_LyA_er	cont_LyA	cont_LyA_er	snr_LyA	snr_LyA_er	chi2_LyA	chi2_LyA_er	fwhm_NV	fwhm_NV_er	ew_NV	ew_NV_er	flux_NV	flux_NV_er	cont_NV	cont_NV_er	fwhm_SiO	fwhm_SiO_er	ew_SiO	ew_SiO_er	flux_SiO	flux_SiO_er	cont_SiO	cont_SiO_er	snr_SiO	snr_SiO_er	chi2_SiO	chi2_SiO_er	fwhm_CIV	fwhm_CIV_er	ew_CIV	ew_CIV_er	flux_CIV	flux_CIV_er	cont_CIV	cont_CIV_er	snr_CIV	snr_CIV_er	chi2_CIV	chi2_CIV_er	fwhm_HeII	fwhm_HeII_er	ew_HeII	ew_HeII_er	flux_HeII	flux_HeII_er	cont_HeII	cont_HeII_er	snr_HeII	snr_HeII_er	chi2_HeII	chi2_HeII_er	fwhm_CIII	fwhm_CIII_er	ew_CIII	ew_CIII_er	flux_CIII	flux_CIII_er	cont_CIII	cont_CIII_er	snr_CIII	snr_CIII_er	chi2_CIII	chi2_CIII_er	fwhm_MgII	fwhm_MgII_er	ew_MgII	ew_MgII_er	flux_MgII	flux_MgII_er	cont_MgII	cont_MgII_er	snr_MgII	snr_MgII_er	chi2_MgII	chi2_MgII_er	fwhm_OII	fwhm_OII_er	ew_OII	ew_OII_er	flux_OII	flux_OII_er	cont_OII	cont_OII_er	snr_OII	snr_OII_er	chi2_OII	chi2_OII_er	fwhm_OVI	fwhm_OVI_er	ew_OVI	ew_OVI_er	flux_OVI	flux_OVI_er	cont_OVI	cont_OVI_er	snr_OVI	snr_OVI_er	chi2_OVI	chi2_OVI_er	fiberid	r_aper	r_aper_er	r_radius	r_depth	r_cat	g_aper	g_aper_er	g_radius	g_depth	g_cat	u_aper	u_aper_er	u_radius	u_depth	u_cat	rsep_dr14q	id_dr14q	z_dr14q	rsep_dr16	plate_dr16	fiber_dr16	mjd_dr16	z_dr16	sflag	apcor
	deg	deg							deg	deg	arcsec										1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)	km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)						mag	mag	arcsec	arcsec		mag	mag	arcsec	arcsec		mag	mag	arcsec	arcsec		arcsec			arcsec
int64	float32	float32	float32	float32	int64	bytes10	int64	int64	float32	float32	float32	int64	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	bytes38	float32	float32	float32	float32	bytes16	float32	float32	float32	float32	bytes16	float32	float32	float32	float32	bytes16	float32	bytes15	float32	float32	int64	int64	int64	float32	int64	float32
1	12.274719	-0.5261988	4.165	0.00128	1	dex-fall	1	2101370146	12.274748	-0.526209	0.1103	5	3.7	0.22726992	3.2810827e-12	0.509423	0.0236397	0.0015818	-19.9886	1.3526	28.65	2.604	40.09	3.621	1221.91	111.7	14796.17	1368.549	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	23484.55	47.786	2292.5	551.564	1070.96	7.341	0.47	0.044	60.321	0.356	4.14	0.053	20191006024_1_multi_323_043_040_LU_070	-99.0	-99.0	-99.0	-99.0	?	22.0072	0.0205	1.8639	24.7	DECAM/SHELA	-99.0	-99.0	-99.0	-99.0	?	0.06878143	3590-55201-0222	4.165	0.06878143	3590	222	55201	4.165187	0	0.943
2	210.3998	51.95324	4.148	8e-05	1	dex-spring	1	2101001922	210.39957	51.953056	0.8342	7	-99.0	0.40755767	-99.0	52674527000.0	-0.0016423	0.0010959	1.307	0.9362	-20.6	7.385	-26.11	9.506	-182.04	73.009	-604.31	315.057	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	24464.0	0.0	9999.0	1596.571	1538.96	16.232	-0.39	0.123	95.12	1.001	8.59	0.066	20190504027_3_multi_203_086_031_RL_020	19.6638	0.0022	1.5286	26.0	MegaPrime/CFHTLS	21.2174	0.0038	1.3656	26.0	MegaPrime/CFHTLS	-99.0	-99.0	-99.0	-99.0	?	1.3860204	6739-56393-0402	4.148	1.1737028	1044	192	52468	4.1502028	0	0.952
3	194.16838	51.994675	3.93	0.00047	1	dex-spring	1	2100842829	194.16832	51.994694	0.1689	2	-0.78924	0.33032688	-9.998769	6499248000.0	0.0014873	0.0011787	-1.3231	1.0091	-0.67	4.193	-0.68	5.423	-0.8	51.348	-0.89	399.417	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	10560.4	446.506	9999.0	38563.977	908.63	11.373	-0.04	0.079	64.97	1.243	5.23	0.042	20190403022_3_multi_326_082_034_LL_096	-99.0	-99.0	-99.0	-99.0	?	21.1224	0.0249	2.1935	24.7	MOSAIC/KPNO	-99.0	-99.0	-99.0	-99.0	?	0.37794486	6673-56419-0158	3.93	0.37794486	6673	158	56419	3.9429967	1	0.93
4	242.78114	53.702232	3.929	0.00074	1	dex-spring	2	2102444492	242.78114	53.702232	0.0	1	-2.36664	0.50077295	3186625.0	524702220000.0	-0.0035677	0.0023944	3.42	2.0522	2.48	7.686	2.25	9.926	0.83	106.982	0.4	995.467	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	1761.81	993.613	2853.96	1158259300000.0	667.86	23.069	0.23	0.148	15.964	1.73	1.45	0.026	20200527024_1_multi_326_082_034_LU_062	20.9136	0.0122	1.8493	24.0	DECaLS	22.2278	0.0251	2.478	24.0	DECaLS	-99.0	-99.0	-99.0	-99.0	?	0.47564432	6312-56487-0721	3.929	0.47564432	6312	721	56487	3.9316654	0	0.888
5	165.8053	51.27956	3.912	0.00077	1	dex-spring	2	2100958103	165.8053	51.279537	0.0768	6	-2.79708	0.30297083	73525080.0	589500000000.0	-0.0053573	0.0014661	5.0513	1.2598	2.54	3.373	2.23	4.309	0.61	41.681	0.23	382.316	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	16104.86	406.605	2930.8	271.181	797.58	10.982	0.27	0.069	61.425	0.857	3.47	0.043	20190501017_1_multi_308_047_024_LU_084	20.2565	0.0039	2.2142	26.2	HSC-DEX	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	0.5949936	8161-57127-0750	3.912	0.5949936	6706	116	56385	3.912013	1	0.936
6	9.84455	0.4451806	3.844	0.0002	1	dex-fall	1	2101392594	9.844523	0.445109	0.275	3	-99.0	0.55153126	-99.0	428311940000.0	0.00104	0.0017264	-0.3605	1.4737	19.71	5.628	23.28	7.331	115.84	137.866	352.77	1685.902	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	14561.13	606.153	1492.25	363000630000.0	1066.47	17.86	0.71	0.117	64.173	1.52	4.47	0.038	20191024024_1_multi_410_015_038_LU_043	-99.0	-99.0	-99.0	-99.0	?	21.8485	0.0277	1.8117	24.7	DECAM/SHELA	-99.0	-99.0	-99.0	-99.0	?	0.5357903	4222-55444-0658	3.844	0.5357903	3589	528	55186	3.8397486	0	0.961
7	11.8217	-0.014904	3.767	0.00017	1	dex-fall	1	2100094844	11.8217	-0.014904	0.0	1	1.35604	0.1330209	0.00017614399	94.48662	0.002858	0.0002763	-0.7849	0.2696	55.72	2.289	65.94	3.221	365.66	63.31	1276.53	503.414	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	1078.34	133.976	172.06	8.45	370.89	8.364	2.16	0.045	7.713	0.187	0.91	0.024	20171115010_3_multi_027_085_001_RU_018	-99.0	-99.0	-99.0	-99.0	?	22.3022	0.0192	1.9476	24.7	DECAM/SHELA	-99.0	-99.0	-99.0	-99.0	?	0.1456584	3590-55201-0314	3.767	0.14389646	3589	118	55186	3.7854643	0	0.472
8	176.67075	52.125137	3.732	0.00017	1	dex-spring	1	2101918986	176.6708	52.125084	0.2418	4	3.7	2.479328e-10	1.931566e-11	1.8884091e-13	0.0127527	0.000208	-10.2972	0.2112	129.96	1.271	181.83	1.778	5542.65	54.188	67116.2	656.166	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	3289.47	66.819	163.33	3.319	449.18	5.775	2.75	0.027	28.733	0.18	1.98	0.03	20200325031_2_multi_329_088_029_RL_079	-99.0	-99.0	-99.0	-99.0	?	20.8898	0.0164	1.5864	24.7	MOSAIC/KPNO	-99.0	-99.0	-99.0	-99.0	?	0.4745277	6683-56416-0558	3.729	0.4745277	6683	558	56416	3.7293863	1	0.896
9	27.704254	0.691078	3.706	0.00019	1	dex-fall	1	2101428801	27.704254	0.691078	0.0	1	1.70769	0.056082614	3.605734e-05	0.0009842182	0.0082225	0.0002657	-3.3741	0.2586	138.38	2.314	167.92	3.36	1202.41	68.038	5058.67	444.509	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	2029.52	29.228	48.2	2.481	244.21	10.729	5.07	0.041	15.601	0.135	2.43	0.035	20191101016_3_multi_330_092_075_LU_036	-99.0	-99.0	-99.0	-99.0	?	20.5277	0.0035	2.9	24.7	DECAM/SHELA	-99.0	-99.0	-99.0	-99.0	?	196.33844	0700-52199-0388	1.6773	3.273165	4233	556	55449	3.702474	1	0.856
...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...
5369	220.18811	51.25882	0.26	0.00017	1	dex-spring	1	2100296414	220.18817	51.259144	1.1702	4	1.14608	0.006971624	0.0005440151	3.547415e-05	0.0020567	1.31e-05	-0.9199	0.0445	0.06	0.0	0.07	0.0	0.33	0.0	1.02	0.003	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	116.82	159.976	29.38	0.779	142.65	3.775	4.85	0.008	4.337	0.21	0.95	0.054	449.78	5.15	6.04	0.073	40.76	0.481	6.75	0.006	14.543	0.153	2.09	0.065	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20180511009_1_multi_032_094_028_LL_010	18.5924	0.002	2.6021	26.2	HSC-DEX	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	0.85573226	1328-52786-0351	0.26	0.85573226	1328	351	52786	0.26008368	2	0.631
5370	22.692274	-0.1335406	0.254	3e-05	1	dex-fall	1	2100641342	22.69228	-0.133544	0.0239	3	-2.53498	0.003344833	15290446000.0	445417800.0	-0.0113178	1.33e-05	56.3999	0.0475	4.72	0.014	4.23	0.012	1.39	0.001	0.61	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	1164.74	40.963	3.47	0.204	96.89	5.657	27.94	0.018	7.068	0.125	0.7	0.053	410.2	10.652	2.6	0.152	35.06	2.04	13.5	0.008	5.737	0.143	0.62	0.038	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20190101013_1_multi_032_094_028_LU_107	19.0405	0.0013	1.5705	26.4	HSC-SSP	19.3279	0.0014	1.6979	26.8	HSC-SSP	19.4798	0.001	2.0743	25.7	DECAM/SHELA	48.31098	4229-55501-0117	2.895	0.1862989	400	271	51820	0.25381678	2	0.904
5371	9.347875	0.1367988	0.252	1e-05	1	dex-fall	1	2100516315	9.347902	0.136783	0.1157	17	-2.92435	0.0022384499	859391600000.0	16009678000.0	-0.0301868	2.25e-05	145.6705	0.0814	15.74	0.032	13.72	0.026	3.39	0.001	1.22	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	2048.34	13.83	33.74	0.328	2409.89	23.233	71.43	0.033	37.581	0.133	0.94	0.074	573.79	11.702	8.24	0.093	254.28	2.83	30.85	0.009	13.741	0.141	1.78	0.057	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20181106013_1_multi_318_026_078_RU_061	-99.0	-99.0	-99.0	-99.0	?	18.1815	0.0023	2.7577	24.7	DECAM/SHELA	-99.0	-99.0	-99.0	-99.0	?	0.1457751	7868-57006-0816	0.2519668	0.1457751	7868	816	57006	0.25196669	2	0.925
5372	205.14743	55.82529	0.246	1e-05	1	dex-spring	1	2101986017	205.14742	55.825287	0.0385	7	-1.82085	0.0024260175	86809544.0	1790615.4	-0.0155844	1.91e-05	86.1609	0.0695	4.28	0.01	4.04	0.009	2.22	0.001	1.44	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	4128.8	32.178	25.23	0.412	1158.6	18.812	45.93	0.025	6.401	0.074	0.44	0.064	516.83	7.764	2.1	0.025	57.32	0.676	27.23	0.009	12.338	0.127	1.05	0.043	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20200413019_2_multi_422_078_069_LU_105	17.9946	0.0016	2.6537	26.2	HSC-DEX	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	0.8978812	1322-52791-0389	0.2464	0.8978812	1322	389	52791	0.24669994	2	0.861
5373	13.692243	0.701108	0.234	5e-05	1	dex-fall	1	2101402277	13.692243	0.701108	0.0	1	-2.18995	0.004559054	1375639000.0	50706564.0	-0.0141752	2.79e-05	74.477	0.0998	4.24	0.018	3.89	0.015	1.64	0.001	0.87	0.002	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	467.76	18.423	2.43	0.164	50.32	3.388	20.73	0.013	5.024	0.147	0.57	0.044	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20191027016_1_multi_330_092_075_LL_006	-99.0	-99.0	-99.0	-99.0	?	19.1446	0.0042	2.4601	24.7	DECAM/SHELA	-99.0	-99.0	-99.0	-99.0	?	60.330315	4224-55481-0796	3.995	0.4018406	394	616	51812	0.23403154	0	0.839
5374	165.21265	51.583958	0.214	3e-05	1	dex-spring	1	2100935227	165.21255	51.58395	0.2078	8	-1.6822	0.001743967	46059370.0	662251.3	-0.0234842	2.49e-05	133.9755	0.0896	4.51	0.007	4.29	0.006	2.61	0.001	1.82	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	407.22	9.413	2.3	0.104	104.02	4.689	45.19	0.012	4.363	0.094	1.39	0.053	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20190428024_2_multi_312_045_065_RL_059	-99.0	-99.0	-99.0	-99.0	?	17.3521	0.0033	2.8126	24.7	MOSAIC/KPNO	-99.0	-99.0	-99.0	-99.0	?	0.1500075	8161-57127-0653	0.214	0.14844422	6706	220	56385	0.2138869	0	0.925
5375	36.272396	0.094684	0.213	1e-05	1	dex-fall	1	2100541228	36.272396	0.094684	0.0	1	-1.34181	0.003746944	913636.7	29419.219	-0.005808	1.69e-05	36.667	0.0628	1.03	0.004	1.0	0.003	0.78	0.001	0.65	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	506.27	4.153	5.63	0.039	82.9	0.565	14.73	0.008	22.013	0.15	2.45	0.071	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20181114017_3_multi_323_043_040_LU_071	18.8282	0.0012	2.2068	26.4	HSC-SSP	19.2781	0.0012	2.4001	26.8	HSC-SSP	-99.0	-99.0	-99.0	-99.0	?	137.94528	6780-56605-0600	1.822	0.33331427	406	118	51817	0.2133588	0	0.936
5376	183.5177	55.68013	0.211	3e-05	1	dex-spring	1	2101989501	183.5177	55.68013	0.0	1	-3.37246	0.0053467685	12540706000000.0	553263370000.0	-0.0125274	1.93e-05	59.0864	0.0696	6.08	0.03	5.14	0.023	0.92	0.001	0.26	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	492.38	7.62	2.56	0.037	28.9	0.414	11.3	0.008	8.211	0.101	0.89	0.037	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20200414015_2_multi_311_053_025_RU_001	18.0692	0.0042	2.7476	26.2	HSC-DEX	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	301.8894	6833-56413-0504	0.939	1.0024536	1018	613	52672	0.21136948	0	0.658
5377	28.867453	0.068565	0.186	2e-05	1	dex-fall	1	2100094558	28.867453	0.068565	0.0	1	-0.41791	0.008291629	330.36908	31.295057	-0.00126	2.46e-05	15.3587	0.0876	0.21	0.002	0.22	0.002	0.34	0.001	0.46	0.002	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	787.0	10.924	10.66	0.113	113.24	1.161	10.63	0.012	15.172	0.112	2.46	0.062	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20171114010_1_multi_017_086_022_RL_088	18.2431	0.0019	2.8756	26.4	HSC-SSP	19.0351	0.0024	2.8629	26.8	HSC-SSP	-99.0	-99.0	-99.0	-99.0	?	159.61917	1505-52941-0231	1.5631	0.11709731	403	425	51871	0.18609864	0	0.931
5378	165.08255	51.6671	0.181	1e-05	1	dex-spring	1	2100775690	165.08255	51.667107	0.035	4	-1.78022	0.0048941295	42569388.0	1711833.9	-0.009764	2.46e-05	55.6402	0.0871	1.41	0.006	1.34	0.006	0.76	0.001	0.5	0.001	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	591.71	4.326	5.12	0.042	95.46	0.765	18.65	0.012	18.915	0.137	10.49	0.147	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20190301014_3_multi_013_103_019_LU_027	-99.0	-99.0	-99.0	-99.0	?	18.1692	0.0026	2.104	24.7	MOSAIC/KPNO	-99.0	-99.0	-99.0	-99.0	?	0.1048321	8165-57374-0460	0.1809709	0.1048321	8165	460	57374	0.18094175	0	0.925

check the header of the table

agn.info

<Table length=5322>
     name      dtype              unit                               description                  
------------- ------- ---------------------------- -----------------------------------------------
        agnid   int64                                   artificial sequential numbers for each AGN
           ra float32                          deg    RA  of the AGN (center of flux weighted fof)
          dec float32                          deg    DEC of the AGN (center of flux weighted fof)
            z float32                                                                     redshift
         z_er float32                                                            error of redshift
        zflag   int64                                        zflag=0/1: 1 confirmed z; 0 guessed z
        field bytes10                                                   field in the HETDEX survey
       nshots   int64                                                number of repeat observations
detectid_best   int64                               ID in the hetdex catalog closest to fof center
      ra_best float32                          deg                            RA  of detectid_best
     dec_best float32                          deg                            DEC of detectid_best
         roff float32                       arcsec offsec between ra_best,dec_best with fof center
         nmem   int64                                                   number of member detectids
        alpha float32                               alpha_lambda of the power-law fitted continuum
     alpha_er float32                                                               error of alpha
         fpl0 float32                                   power-law continuum = fpl0 * lambda^alpha 
      fpl0_er float32                                                                error of fpl0
        slope float32                                         slope of the linear fitted continuum
     slope_er float32                                                               error of slope
    intercept float32                                     intercept of the linear fitted continuum
 intercept_er float32                                                           error of intercept
        L1350 float32                1e+44 erg / s  monochromatic luminosity at rest-frame 1350 AA
     L1350_er float32                1e+44 erg / s                                  error of L1350
        L1450 float32                1e+44 erg / s  monochromatic luminosity at rest-frame 1450 AA
     L1450_er float32                1e+44 erg / s                                  error of L1450
        L3000 float32                1e+44 erg / s  monochromatic luminosity at rest-frame 3000 AA
     L3000_er float32                1e+44 erg / s                                  error of L3000
        L5100 float32                1e+44 erg / s  monochromatic luminosity at rest-frame 5100 AA
     L5100_er float32                1e+44 erg / s                                  error of L5100
     fwhm_LyA float32                       km / s             rest-frame FWHM of the LyA emission
  fwhm_LyA_er float32                       km / s                               error of fwhm_LyA
       ew_LyA float32                     Angstrom               rest-frame EW of the LyA emission
    ew_LyA_er float32                     Angstrom                                 error of ew_LyA
     flux_LyA float32          1e-17 erg / (s cm2)             rest-frame flux of the LyA emission
  flux_LyA_er float32          1e-17 erg / (s cm2)                               error of flux_LyA
     cont_LyA float32 1e-17 erg / (Angstrom s cm2)        rest-frame continuum at the LyA emission
  cont_LyA_er float32 1e-17 erg / (Angstrom s cm2)                               error of cont_LyA
      snr_LyA float32                                                        S/N of the LyA region
   snr_LyA_er float32                                                             error of snr_LyA
     chi2_LyA float32                                                       chi2 of the LyA region
  chi2_LyA_er float32                                                            error of chi2_LyA
      fwhm_NV float32                       km / s              rest-frame FWHM of the NV emission
   fwhm_NV_er float32                       km / s                                error of fwhm_NV
        ew_NV float32                     Angstrom                rest-frame EW of the NV emission
     ew_NV_er float32                     Angstrom                                  error of ew_NV
      flux_NV float32          1e-17 erg / (s cm2)              rest-frame flux of the NV emission
   flux_NV_er float32          1e-17 erg / (s cm2)                                error of flux_NV
      cont_NV float32 1e-17 erg / (Angstrom s cm2)         rest-frame continuum at the NV emission
   cont_NV_er float32 1e-17 erg / (Angstrom s cm2)                                error of cont_NV
     fwhm_SiO float32                       km / s             rest-frame FWHM of the SiO emission
  fwhm_SiO_er float32                       km / s                               error of fwhm_SiO
       ew_SiO float32                     Angstrom               rest-frame EW of the SiO emission
    ew_SiO_er float32                     Angstrom                                 error of ew_SiO
     flux_SiO float32          1e-17 erg / (s cm2)             rest-frame flux of the SiO emission
  flux_SiO_er float32          1e-17 erg / (s cm2)                               error of flux_SiO
     cont_SiO float32 1e-17 erg / (Angstrom s cm2)        rest-frame continuum at the SiO emission
  cont_SiO_er float32 1e-17 erg / (Angstrom s cm2)                               error of cont_SiO
      snr_SiO float32                                                        S/N of the SiO region
   snr_SiO_er float32                                                             error of snr_SiO
     chi2_SiO float32                                                       chi2 of the SiO region
  chi2_SiO_er float32                                                            error of chi2_SiO
     fwhm_CIV float32                       km / s             rest-frame FWHM of the CIV emission
  fwhm_CIV_er float32                       km / s                               error of fwhm_CIV
       ew_CIV float32                     Angstrom               rest-frame EW of the CIV emission
    ew_CIV_er float32                     Angstrom                                 error of ew_CIV
     flux_CIV float32          1e-17 erg / (s cm2)             rest-frame flux of the CIV emission
  flux_CIV_er float32          1e-17 erg / (s cm2)                               error of flux_CIV
     cont_CIV float32 1e-17 erg / (Angstrom s cm2)        rest-frame continuum at the CIV emission
  cont_CIV_er float32 1e-17 erg / (Angstrom s cm2)                               error of cont_CIV
      snr_CIV float32                                                        S/N of the CIV region
   snr_CIV_er float32                                                             error of snr_CIV
     chi2_CIV float32                                                       chi2 of the CIV region
  chi2_CIV_er float32                                                            error of chi2_CIV
    fwhm_HeII float32                       km / s            rest-frame FWHM of the HeII emission
 fwhm_HeII_er float32                       km / s                              error of fwhm_HeII
      ew_HeII float32                     Angstrom              rest-frame EW of the HeII emission
   ew_HeII_er float32                     Angstrom                                error of ew_HeII
    flux_HeII float32          1e-17 erg / (s cm2)            rest-frame flux of the HeII emission
 flux_HeII_er float32          1e-17 erg / (s cm2)                              error of flux_HeII
    cont_HeII float32 1e-17 erg / (Angstrom s cm2)       rest-frame continuum at the HeII emission
 cont_HeII_er float32 1e-17 erg / (Angstrom s cm2)                              error of cont_HeII
     snr_HeII float32                                                       S/N of the HeII region
  snr_HeII_er float32                                                            error of snr_HeII
    chi2_HeII float32                                                      chi2 of the HeII region
 chi2_HeII_er float32                                                           error of chi2_HeII
    fwhm_CIII float32                       km / s            rest-frame FWHM of the CIII emission
 fwhm_CIII_er float32                       km / s                              error of fwhm_CIII
      ew_CIII float32                     Angstrom              rest-frame EW of the CIII emission
   ew_CIII_er float32                     Angstrom                                error of ew_CIII
    flux_CIII float32          1e-17 erg / (s cm2)            rest-frame flux of the CIII emission
 flux_CIII_er float32          1e-17 erg / (s cm2)                              error of flux_CIII
    cont_CIII float32 1e-17 erg / (Angstrom s cm2)       rest-frame continuum at the CIII emission
 cont_CIII_er float32 1e-17 erg / (Angstrom s cm2)                              error of cont_CIII
     snr_CIII float32                                                       S/N of the CIII region
  snr_CIII_er float32                                                            error of snr_CIII
    chi2_CIII float32                                                      chi2 of the CIII region
 chi2_CIII_er float32                                                           error of chi2_CIII
    fwhm_MgII float32                       km / s            rest-frame FWHM of the MgII emission
 fwhm_MgII_er float32                       km / s                              error of fwhm_MgII
      ew_MgII float32                     Angstrom              rest-frame EW of the MgII emission
   ew_MgII_er float32                     Angstrom                                error of ew_MgII
    flux_MgII float32          1e-17 erg / (s cm2)            rest-frame flux of the MgII emission
 flux_MgII_er float32          1e-17 erg / (s cm2)                              error of flux_MgII
    cont_MgII float32 1e-17 erg / (Angstrom s cm2)       rest-frame continuum at the MgII emission
 cont_MgII_er float32 1e-17 erg / (Angstrom s cm2)                              error of cont_MgII
     snr_MgII float32                                                       S/N of the MgII region
  snr_MgII_er float32                                                            error of snr_MgII
    chi2_MgII float32                                                      chi2 of the MgII region
 chi2_MgII_er float32                                                           error of chi2_MgII
     fwhm_OII float32                       km / s             rest-frame FWHM of the OII emission
  fwhm_OII_er float32                       km / s                               error of fwhm_OII
       ew_OII float32                     Angstrom               rest-frame EW of the OII emission
    ew_OII_er float32                     Angstrom                                 error of ew_OII
     flux_OII float32          1e-17 erg / (s cm2)             rest-frame flux of the OII emission
  flux_OII_er float32          1e-17 erg / (s cm2)                               error of flux_OII
     cont_OII float32 1e-17 erg / (Angstrom s cm2)        rest-frame continuum at the OII emission
  cont_OII_er float32 1e-17 erg / (Angstrom s cm2)                               error of cont_OII
      snr_OII float32                                                        S/N of the OII region
   snr_OII_er float32                                                             error of snr_OII
     chi2_OII float32                                                       chi2 of the OII region
  chi2_OII_er float32                                                            error of chi2_OII
     fwhm_OVI float32                       km / s             rest-frame FWHM of the OVI emission
  fwhm_OVI_er float32                       km / s                               error of fwhm_OVI
       ew_OVI float32                     Angstrom               rest-frame EW of the OVI emission
    ew_OVI_er float32                     Angstrom                                 error of ew_OVI
     flux_OVI float32          1e-17 erg / (s cm2)             rest-frame flux of the OVI emission
  flux_OVI_er float32          1e-17 erg / (s cm2)                               error of flux_OVI
     cont_OVI float32 1e-17 erg / (Angstrom s cm2)        rest-frame continuum at the OVI emission
  cont_OVI_er float32 1e-17 erg / (Angstrom s cm2)                               error of cont_OVI
      snr_OVI float32                                                        S/N of the OVI region
   snr_OVI_er float32                                                             error of snr_OVI
     chi2_OVI float32                                                       chi2 of the OVI region
  chi2_OVI_er float32                                                            error of chi2_OVI
      fiberid bytes38                                               fiberid in hetdex fiber design
       r_aper float32                          mag                       r-band aperture magnitude
    r_aper_er float32                          mag                                 error of r_aper
     r_radius float32                       arcsec                          r-band aperture radius
      r_depth float32                       arcsec                      r-band depth of this field
        r_cat bytes16                                                             survey of r_aper
       g_aper float32                          mag                       g-band aperture magnitude
    g_aper_er float32                          mag                                 error of g_aper
     g_radius float32                       arcsec                          g-band aperture radius
      g_depth float32                       arcsec                      g-band depth of this field
        g_cat bytes16                                                             survey of g_aper
       u_aper float32                          mag                       u-band aperture magnitude
    u_aper_er float32                          mag                                 error of u_aper
     u_radius float32                       arcsec                          u-band aperture radius
      u_depth float32                       arcsec                      u-band depth of this field
        u_cat bytes16                                                             survey of u_aper
   rsep_dr14q float32                       arcsec                    smallest separation to dr14q
     id_dr14q bytes15                                               ID of the closest AGN in dr14q
      z_dr14q float32                                                spectral redshift of id_dr14q
    rsep_dr16 float32                       arcsec                     smallest separation to dr16
   plate_dr16   int64                                             plate of the closest AGN in dr16
   fiber_dr16   int64                                             fiber of the closest AGN in dr16
     mjd_dr16   int64                                              mjd  of the closest AGN in dr16
       z_dr16 float32                                                 spectral redshift of id_dr16
        sflag   int64                                                2em=2, sBL=1, boss=0, else=-1
        apcor float32                                                          aperture correction

Read extension 2 in as a 2-d array

from astrowidgets import ImageWidget

#hdu2, hdr2 = getdata( fname, 2, header = True )
print(hdul[2].header)
im    = hdul[2].data # read spectra in from extension 2
im_er = hdul[3].data # read errors  in from extension 3 if needed

imw = ImageWidget()
imw.cuts = (-1, 25)
imw.load_array(im)
display(imw)

XTENSION= 'IMAGE   '           / Image extension                                BITPIX  =                  -32 / array data type                                NAXIS   =                    2 / number of array dimensions                     NAXIS1  =                 1036                                                  NAXIS2  =                 5322                                                  PCOUNT  =                    0 / number of parameters                           GCOUNT  =                    1 / number of groups                               EXTNAME = 'flux_array'                                                          HIERARCH wave_start = '3470.0 AA'                                               HIERARCH wave_step = '   2.0 AA'                                                HIERARCH flux_unit = '1.0e-17 * erg / (cm^2 * s * AA)'                          END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

the information of the wave_array corresponds to the flux_array in each row can be found in the header:

wave_start = 3470.0, wave_step = 2.0

hdul[2].header['wave_start'], hdul[2].header['wave_step'], hdul[2].header['flux_unit']

('3470.0 AA', '   2.0 AA', '1.0e-17 * erg / (cm^2 * s * AA)')

# prepare wavelength array for the spectra
wave_start = 3470.0
wave_step  = 2.0
n_elements = hdul[2].header['NAXIS1'] #1036
wave_arr = wave_start + wave_step * np.arange( 0, n_elements )
wave_arr

array([3470., 3472., 3474., ..., 5536., 5538., 5540.])

from IPython.display import Image
import matplotlib.pyplot as plt

# ............
w_CIIIa = 977.030
w_NIII  = 991.514
w_OVIa  = 1031.912
w_OVIb  = 1037.613
w_LyA   = 1215.24 
w_NV    = 1240.81
w_OI    = 1305.53
w_CIIa  = 1335.31
w_SiO   = 1399.8
w_CIV   = 1549.48
w_HeII  = 1640.40
w_OIII  = 1665.85
w_CIIIb = 1908.734
w_CIIb  = 2326.0
w_NeIV  = 2439.5
w_MgII  = 2799.117
w_OII   = 3729.875
w_NeVI  = 3426.85
w_NeIII = 3868.760
w_Hg    = 4341.68
# ............

fontsize = 15
xl, xh = 3450, 5550 

# plot some example spectra at the following redshifts
z_sel = np.array( [ 0.9, 1.3, 1.8, 2.2, 2.5, 3.9 ] )

for i in range(np.size(z_sel)):
    sel  = agn['z'] < z_sel[i]
    dtmp = im[sel]
    flux_arr = dtmp[0]
    
    fig, ax = plt.subplots( figsize = ( 10., 5.)  )
    
    plt.plot( wave_arr, flux_arr, 'k' )
    
    lines   = np.array( [  w_OVIa, w_OVIb, w_LyA,   w_NV,   w_SiO,  w_CIV, w_HeII,   w_CIIb, w_CIIIb,  w_MgII, w_OII, w_NeVI, w_NeIII  ] )
    labels  = np.array( [  ' ',     'OVI',  'LyA','    NV', 'Si+O',   'CIV', 'HeII',    'C2', 'C III]', 'MgII', 'OII', 'NeVI', 'NeIII' ] )    

    yl, yh = np.min(flux_arr), np.max(flux_arr)
    for i in range( np.size(lines) ):
        wline = lines[i] * ( 1 + agn[sel]['z'][0] )
        if( ( wline >= xl ) and (wline <= xh ) ):
            wline = np.full( 2, wline )     
            plt.text( wline[0]+10, 0.9 * yh, labels[i], color = 'blue', fontsize=14 )
            plt.plot( wline,  np.array([yl,yh]), color = 'blue', linestyle = '--', linewidth = 1.0 )
    
    plt.xlim( xl, xh )
    plt.tick_params( which = 'both', bottom=True, top=True, left=True, right=True )

    plt.xlabel('$\mathrm{\lambda_{obs}\ (\AA)}$',fontsize=fontsize)
    plt.ylabel('$\mathrm{f_{\lambda,obs}\ (10^{-17} ergs/s/cm^2/\AA)}$',fontsize=fontsize)
    plt.xticks(fontsize=fontsize)
    plt.yticks(fontsize=fontsize)

    stitle = 'agnid=%d, detectid_best=%d, z=%.2f' % (agn[sel]['agnid'][0], agn[sel]['detectid_best'][0], agn[sel]['z'][0])
    plt.title( stitle, fontsize=fontsize )
    plt.show()
    #plt.savefig( 'tmp.png', format='png')
    #Image('tmp.png')

read extension 4 in as a table of repeat observation info

There are some repeat observations for some agns. In this table, each observation has one entry with a unique “shotid”, nshots shows the number of repeat observations for each unique AGN.

tab = Table.read( fname, format = 'fits', hdu = 4 )
tab

Table length=6004

agnid	nshots	shotid
int64	int64	int64
1	1	20191006024
2	1	20190504027
3	1	20190403022
4	2	20200414024
4	2	20200527024
5	2	20190501017
5	2	20190429016
6	1	20191024024
7	1	20171115010
8	1	20200325031
...	...	...
5369	1	20180511009
5370	1	20190101013
5371	1	20181106013
5372	1	20200413019
5373	1	20191027016
5374	1	20190428024
5375	1	20181114017
5376	1	20200414015
5377	1	20171114010
5378	1	20190301014

sel = tab['nshots'] == 1
print("There are %d AGNs that are only observed once" % np.sum(sel))

sel = tab['nshots'] == 2
dtmp = np.unique( tab[sel]['agnid'] )
print("There are %d AGNs that are observed twice" % np.size(dtmp) )

sel = tab['nshots'] > 2
dtmp = np.unique( tab[sel]['agnid'] )
print("There are %d AGNs that are observed more than twice" % np.size(dtmp) )

There are 4799 AGNs that are only observed once
There are 437 AGNs that are observed twice
There are 74 AGNs that are observed more than twice

Find all spectra and their error of a certain AGN in extension 5 and 6

find some strong agns (big nmem) with secure redshifts (z!=0) with more than five repeat observations

sel1 = agn['nshots'] >= 5
sel2 = agn['zflag' ] != 0
sel = sel1 * sel2
dtmp = agn[sel]
sel = np.argsort(-dtmp['nmem'])
dtmp[sel]

Table length=10

agnid	ra	dec	z	z_er	zflag	field	nshots	detectid_best	ra_best	dec_best	roff	nmem	alpha	alpha_er	fpl0	fpl0_er	slope	slope_er	intercept	intercept_er	L1350	L1350_er	L1450	L1450_er	L3000	L3000_er	L5100	L5100_er	fwhm_LyA	fwhm_LyA_er	ew_LyA	ew_LyA_er	flux_LyA	flux_LyA_er	cont_LyA	cont_LyA_er	snr_LyA	snr_LyA_er	chi2_LyA	chi2_LyA_er	fwhm_NV	fwhm_NV_er	ew_NV	ew_NV_er	flux_NV	flux_NV_er	cont_NV	cont_NV_er	fwhm_SiO	fwhm_SiO_er	ew_SiO	ew_SiO_er	flux_SiO	flux_SiO_er	cont_SiO	cont_SiO_er	snr_SiO	snr_SiO_er	chi2_SiO	chi2_SiO_er	fwhm_CIV	fwhm_CIV_er	ew_CIV	ew_CIV_er	flux_CIV	flux_CIV_er	cont_CIV	cont_CIV_er	snr_CIV	snr_CIV_er	chi2_CIV	chi2_CIV_er	fwhm_HeII	fwhm_HeII_er	ew_HeII	ew_HeII_er	flux_HeII	flux_HeII_er	cont_HeII	cont_HeII_er	snr_HeII	snr_HeII_er	chi2_HeII	chi2_HeII_er	fwhm_CIII	fwhm_CIII_er	ew_CIII	ew_CIII_er	flux_CIII	flux_CIII_er	cont_CIII	cont_CIII_er	snr_CIII	snr_CIII_er	chi2_CIII	chi2_CIII_er	fwhm_MgII	fwhm_MgII_er	ew_MgII	ew_MgII_er	flux_MgII	flux_MgII_er	cont_MgII	cont_MgII_er	snr_MgII	snr_MgII_er	chi2_MgII	chi2_MgII_er	fwhm_OII	fwhm_OII_er	ew_OII	ew_OII_er	flux_OII	flux_OII_er	cont_OII	cont_OII_er	snr_OII	snr_OII_er	chi2_OII	chi2_OII_er	fwhm_OVI	fwhm_OVI_er	ew_OVI	ew_OVI_er	flux_OVI	flux_OVI_er	cont_OVI	cont_OVI_er	snr_OVI	snr_OVI_er	chi2_OVI	chi2_OVI_er	fiberid	r_aper	r_aper_er	r_radius	r_depth	r_cat	g_aper	g_aper_er	g_radius	g_depth	g_cat	u_aper	u_aper_er	u_radius	u_depth	u_cat	rsep_dr14q	id_dr14q	z_dr14q	rsep_dr16	plate_dr16	fiber_dr16	mjd_dr16	z_dr16	sflag	apcor
	deg	deg							deg	deg	arcsec										1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	1e+44 erg / s	km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)	km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)					km / s	km / s	Angstrom	Angstrom	1e-17 erg / (s cm2)	1e-17 erg / (s cm2)	1e-17 erg / (Angstrom s cm2)	1e-17 erg / (Angstrom s cm2)						mag	mag	arcsec	arcsec		mag	mag	arcsec	arcsec		mag	mag	arcsec	arcsec		arcsec			arcsec
int64	float32	float32	float32	float32	int64	bytes10	int64	int64	float32	float32	float32	int64	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	bytes38	float32	float32	float32	float32	bytes16	float32	float32	float32	float32	bytes16	float32	float32	float32	float32	bytes16	float32	bytes15	float32	float32	int64	int64	int64	float32	int64	float32
3194	150.23174	2.3640766	1.928	0.00014	1	cosmos	7	2100547486	150.23172	2.36408	0.0701	25	-2.1382	0.03705828	48091710.0	297371070000.0	-0.009658	7.74e-05	22.5698	0.1285	34.75	0.661	32.03	0.47	14.0	0.214	7.65	0.202	3083.94	59.364	55.94	1.228	682.46	12.089	12.2	0.323	21.895	0.321	0.73	0.14	3717.99	144.434	40.89	1.506	477.2	16.778	11.67	0.291	6514.95	332.253	16.74	0.48	150.97	4.085	9.02	0.151	12.903	0.392	0.58	0.35	5072.21	56.88	58.09	1.23	421.64	7.806	7.26	0.081	29.223	0.347	0.72	0.051	710.33	624.794	18.02	0.621	115.8	3.803	6.43	0.055	4.337	0.375	0.59	0.036	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20181119015_2_multi_302_036_041_RL_082	21.0123	0.0043	1.3414	26.4	HSC-SSP	21.0678	0.003	1.2799	26.8	HSC-SSP	21.2675	0.0037	1.8424	25.7	DECAM/COSMOS	279.98495	4737-55630-0156	3.718	0.37742138	4737	159	55630	1.9314914	2	0.951
2832	150.02542	2.0879166	2.052	3e-05	1	cosmos	6	2100136927	150.0254	2.087955	0.1567	6	1.4064	0.23558165	1.209612e-06	28.467165	8.42e-05	7.74e-05	-0.0982	0.1288	0.13	0.063	0.15	0.068	0.87	0.674	3.11	7.1	688.78	6.483	4483.0	547.833	134.49	1.308	0.03	0.016	21.413	0.29	1.24	0.028	2418.87	337.306	764.0	660.859	22.92	2.658	0.03	0.016	375.86	70.788	174.61	686.237	5.61	1.292	0.03	0.015	1.948	0.098	0.67	0.021	758.97	19.635	613.39	649.746	22.75	1.795	0.04	0.016	7.224	0.118	0.55	0.022	182.24	20.503	79.06	673.3	3.18	1.341	0.04	0.017	1.607	0.085	0.56	0.026	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20180209009_2_multi_319_083_023_RL_005	24.6351	0.0837	0.9693	26.4	HSC-SSP	24.601	0.0655	1.105	26.8	HSC-SSP	23.7888	0.0382	1.6348	25.7	DECAM/COSMOS	282.66797	4737-55630-0190	2.288	129.62094	3154	160	54821	0.00014259022	2	0.724
2114	189.3471	62.260574	2.241	1e-04	1	goods-n	5	2100326004	189.34738	62.26041	0.7454	4	-1.06758	0.17699678	728.23206	9148.29	-0.0008639	0.0001364	1.5365	0.194	1.71	0.075	1.7	0.077	1.62	1.393	1.56	14.29	1158.12	50.798	47.49	16.184	17.57	0.581	0.37	0.018	7.54	0.218	0.71	0.025	557.51	388.784	6.22	3.607	2.24	0.43	0.36	0.017	8.52	1250.052	0.0	12.139	0.0	1.296	0.32	0.014	0.0	0.11	0.68	0.027	30.79	168.978	0.13	0.61	0.04	0.13	0.29	0.015	0.069	0.068	0.68	0.026	0.0	83.738	0.0	0.752	0.0	0.087	0.27	0.017	0.0	0.02	0.88	0.031	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20180516012_2_multi_041_084_015_LL_030	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	142.95276	7118-56686-0971	1.017	136.67041	7118	970	56686	-0.00065181305	1	0.765
2209	189.26814	62.246063	2.216	3e-05	1	goods-n	6	2100034488	189.268	62.246014	0.3008	4	3.69989	0.33385694	-2.3763004e-13	16.691307	-0.0003828	7.39e-05	0.4334	0.1101	-0.45	0.065	-0.64	0.074	-19.39	1.33	-234.8	15.903	766.69	7.714	9999.0	422.206	98.62	0.65	-0.06	0.014	25.562	0.146	0.99	0.028	1318.88	70.222	9999.0	489.139	27.86	1.354	-0.07	0.013	68.27	675.832	9999.0	382.424	4.58	0.851	-0.1	0.013	0.518	0.113	0.94	0.029	697.14	37.141	9999.0	365.587	18.04	2.036	-0.15	0.016	6.495	0.124	0.73	0.028	1012.17	281.187	9999.0	380.777	6.56	2.408	-0.19	0.018	2.328	0.181	0.71	0.027	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20170303012_3_multi_008_093_054_LL_067	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	137.65974	7118-56686-0971	1.017	10.047142	7118	970	56686	-0.00065181305	2	0.916
2720	150.23596	2.2890444	2.08686	0.00017	1	cosmos	5	2100545139	150.2359	2.289101	0.3064	2	-0.61483	0.08710167	102.40122	4166.9214	-0.0005542	9.95e-05	1.986	0.1569	5.27	0.103	5.42	0.09	7.17	0.649	8.8	2.355	680.1	389.993	169.18	9.94	219.94	7.66	1.3	0.034	10.807	0.214	0.78	0.024	270.3	637.452	12.66	8.377	16.2	9.947	1.28	0.031	3307.07	542.856	42.98	3.733	51.2	3.435	1.19	0.021	3.67	0.19	0.78	0.026	5583.52	355.543	80.46	3.856	90.05	3.314	1.12	0.017	7.001	0.206	0.64	0.025	2380.44	507.236	4.06	1.205	4.39	1.054	1.08	0.018	0.968	0.128	0.86	0.027	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20181116015_1_multi_304_044_045_LU_039	21.5896	0.0061	1.2931	26.4	HSC-SSP	21.4826	0.0038	1.289	26.8	HSC-SSP	21.6058	0.0042	1.7677	25.7	DECAM/COSMOS	249.20326	4737-55630-0150	2.611	77.323	4737	146	55630	0.16566485	1	0.956
1273	150.18307	2.247664	2.487	8e-05	1	cosmos	7	2100031956	150.18307	2.247664	0.0	1	-2.29929	0.15141167	6345365.5	532300500.0	-0.0040306	0.0002532	5.9028	0.3449	2.67	0.154	2.43	0.15	0.95	0.612	0.48	6.822	931.2	12.008	89.71	196.56	45.75	0.74	0.51	0.028	16.192	0.157	0.71	0.028	1392.01	52.632	0.0	198.101	0.0	1.302	0.49	0.027	170.19	510.482	22.9	198.312	8.49	1.319	0.37	0.022	1.013	0.124	0.77	0.023	605.9	49.059	77.56	197.572	22.75	1.204	0.29	0.02	6.796	0.117	0.77	0.025	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	55.55	175.363	3.78	197.843	2.81	0.601	0.74	0.042	0.046	0.039	1.21	0.033	20170225007_3_multi_020_095_004_LL_044	23.6681	0.0302	1.0617	26.4	HSC-SSP	23.6216	0.0271	1.1485	26.8	HSC-SSP	24.9628	0.0894	1.1547	25.7	DECAM/COSMOS	326.56613	4737-55630-0150	2.611	150.0367	500	552	51994	6.8515124e-05	-1	0.913
2195	150.1798	2.247135	2.22	0.00015	1	cosmos	10	2100031966	150.1798	2.247135	0.0	1	1.28083	0.18453978	4.3440756e-05	18.015305	0.0004963	9.36e-05	-0.2341	0.1379	2.23	0.087	2.63	0.083	13.81	2.03	46.32	18.344	1050.44	155.575	140.41	201.177	54.76	2.242	0.39	0.023	6.29	0.148	0.72	0.027	826.88	483.865	16.25	197.721	6.5	0.981	0.4	0.022	0.0	157.363	0.0	0.162	0.0	0.062	0.47	0.016	0.0	0.02	1.14	0.03	808.45	43.876	8.46	0.92	4.48	0.336	0.53	0.017	1.838	0.134	0.99	0.04	152.73	18.447	1.05	0.566	0.6	0.166	0.57	0.02	0.358	0.08	1.25	0.034	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20170225007_3_multi_020_095_004_LU_028	28.3648	1.1149	0.875	26.4	HSC-SSP	26.8343	0.2516	0.3515	26.8	HSC-SSP	26.8651	0.1683	1.0	25.7	DECAM/COSMOS	337.8013	4737-55630-0150	2.611	153.61548	500	552	51994	6.8515124e-05	1	0.908
2420	189.04907	62.242523	2.167	0.00011	1	goods-n	6	2100029182	189.04907	62.242523	0.0	1	-1.39891	0.19948015	5507.7104	434297.2	-0.0017344	0.0001503	2.7822	0.2305	1.09	0.142	1.06	0.148	0.79	1.062	0.64	6.023	1508.08	86.066	144.67	451.854	39.06	1.139	0.27	0.034	5.139	0.127	0.84	0.029	666.1	810.404	0.0	458.777	0.0	2.277	0.26	0.033	8.5	46.531	9.93	763.554	2.17	1.272	0.22	0.029	0.397	0.094	1.04	0.03	583.8	148.466	38.84	1270.944	7.37	2.152	0.19	0.03	1.421	0.15	0.78	0.026	377.3	181.943	6.95	483.094	1.22	0.931	0.18	0.032	0.508	0.089	0.8	0.029	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20170221012_2_multi_027_085_001_RU_094	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	94.69229	7118-56686-0929	2.587	94.585556	781	221	52373	2.5859513	1	0.912
2970	189.19429	62.246147	2.004	0.00013	1	goods-n	6	2100034726	189.19429	62.246147	0.0	1	-1.32722	0.032337107	5704.258	2335.7236	-0.0016086	5.63e-05	2.8724	0.0934	1.57	0.062	1.53	0.06	1.21	0.05	1.01	0.058	1068.16	19.218	95.93	6.429	44.13	1.13	0.46	0.019	9.308	0.163	0.92	0.022	4866.02	289.873	59.47	7.956	26.76	2.505	0.45	0.018	21260.41	1434.146	21.56	6.885	8.21	1.679	0.38	0.015	0.762	0.151	0.75	0.024	0.0	922.368	0.0	4.613	0.0	0.769	0.33	0.013	0.0	0.082	0.94	0.029	7796.97	803.528	14.38	6.112	4.44	1.263	0.31	0.012	0.788	0.152	0.94	0.025	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20170303012_3_multi_041_084_015_LL_038	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	170.51578	7118-56686-0929	2.587	126.9574	7118	970	56686	-0.00065181305	1	0.929
4611	189.26724	62.132046	1.26	0.00033	1	goods-n	8	2190007845	189.26724	62.132046	0.0	1	-0.86002	0.030318093	680.7762	47.198917	-0.0005275	1.62e-05	2.0678	0.0354	1.73	0.023	1.75	0.02	1.93	0.02	2.08	0.066	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	2751.3	131.585	93.28	2.763	114.6	2.25	1.23	0.012	8.559	0.167	0.44	0.032	4584.18	296.769	21.1	1.345	24.68	1.247	1.17	0.01	4.502	0.2	0.71	0.026	5554.27	276.593	52.89	1.622	54.3	1.41	1.03	0.005	9.945	0.164	0.97	0.035	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	-99.0	20180415016_1_multi_312_047_065_RU_059	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	-99.0	-99.0	-99.0	-99.0	?	284.4289	0781-52373-0230	2.0685	55.133644	7118	79	56686	0.5605918	2	0.896

take agnid = 3194 as an example

agnid = 3194

im_arr    = hdul[5].data
im_er_arr = hdul[6].data

sel = np.where( tab['agnid'] == agnid )
shotid_arr  = tab[sel]['shotid']
flux_arr    = im_arr[sel]
flux_er_arr = im_er_arr[sel]

# arrange the repeat observations by time
sel = np.argsort( shotid_arr )
shotid_arr, flux_arr, flux_er_arr = shotid_arr[sel], flux_arr[sel], flux_er_arr[sel]

# prepare the wavelength array for the spectra
wave_start = 3470.0
wave_step  = 2.0
n_elements = hdul[5].header['NAXIS1'] #1036
wave_arr = wave_start + wave_step * np.arange( 0, n_elements )

# plot all repeat observations
fig, ax = plt.subplots( figsize = ( 10., 5.)  )

for i in range(np.size(shotid_arr)):
    
    plt.plot( wave_arr, flux_arr[i], label = '%d' % shotid_arr[i])
    #plt.errorbar( wave_arr, flux_arr[i], flux_er_arr[i] , capsize = 1.5, label = '%d' % shotid_arr[i] )

# overplot with the catalog spectrum for detectid_best in ext 2&3 as black and compare with ext 5&6
im_arr    = hdul[2].data
im_er_arr = hdul[3].data
sel = agn['agnid'] == agnid
flux_arr    = im_arr[sel][0]
flux_er_arr = im_er_arr[sel][0]
plt.errorbar( wave_arr, flux_arr, flux_er_arr, color = 'k',capsize = 1., \
              label = 'ext2&3 spectrum')
    
plt.xlim( xl, xh )
plt.tick_params( which = 'both', bottom=True, top=True, left=True, right=True )

plt.xlabel('$\mathrm{\lambda_{obs}\ (\AA)}$',fontsize=fontsize)
plt.ylabel('$\mathrm{f_{\lambda,obs}\ (10^{-17} ergs/s/cm^2/\AA)}$',fontsize=fontsize)
plt.xticks(fontsize=fontsize)
plt.yticks(fontsize=fontsize)
plt.legend(fontsize=fontsize)
stitle = 'agnid=%d' % (agnid)
plt.title( stitle, fontsize=fontsize )
plt.show()