IRS Enhanced Spectrophotometric Catalog Definitions

Overview

The IRS Enhanced Spectrophotometric Products consist of two elements:

  1. A collection of 16,986 low-resolution Merged Spectra
  2. A Catalog, including extracted source positions, synthetic photometry in several bands, and PSF profile widths, among other useful quantities.
The Catalog data columns are described here. See the IRS Instrument Handbook for more details. These products were produced using the bksub.tbl products from SL and LL modules of final SSC pipeline (version 18.18).

Name Intype Units Description
reqkey int Spitzer Request ID
tn int Nth Target in this AOR
object char Object name specified by observer
ra float degree Primary Extraction RA J2000.
dec float degree Primary Extraction DEC J2000
cra char HHhMMmSS.SSs form for RA
cdec char +DDdMMmSS.Ss form for DEC
irac8 float Jy IRAC 8 um flux
irac8u float Jy IRAC 8 um flux unc
iras12 float Jy IRAS 12 um flux
iras12u float Jy IRAS 12 um flux unc
irs16 float Jy IRS 16 um flux
irs16u float Jy IRS 16 um flux unc
irs22 float Jy IRS 22 um flux
irs22u float Jy IRS 22 um flux unc
mips24 float Jy MIPS 24 um flux
mips24u float Jy MIPS 24 um flux unc
iras25 float Jy IRAS 25 um flux
iras25u float Jy IRAS 25 um flux unc
mips24_irac8 float color ratio: MIPS24 / IRAC8
mips24_irs16 float color ratio: MIPS24 / IRS16
irs16_irac8 float color ratio: IRS16 / IRAC8
iras25_iras12 float color ratio: IRAS25 / IRAS12
ra_sl float degree Mean extraction RA for SL (orders 1&2)
dec_sl float degree Mean extraction DEC for SL (orders 1&2)
pa_sl float degree Mean FOV_PA for SL (orders 1&2)
ra_ll float degree Mean extraction RA for LL (orders 3&4)
dec_ll float degree Mean extraction DEC for LL (orders 3&4)
pa_ll float degree Mean FOV_PA for LL (orders 3&4)
date_obs char Date/Time of first observation (UTCS)
campname char Spitzer campaign name
bandpass char Bandpass definition
oflag int Order flags, sum of: 1=SL2 2=SL1 4=LL2 8=LL1
ratio_sl2_sl1 float flux ratio SL2 / SL1
ratio_sl1_ll2 float flux ratio SL1 / LL2
ratio_ll2_ll1 float flux ratio LL2 / LL1
ra_rqst float degree Requested RA J2000
dec_rqst float degree Requested DEC J2000
ra_del float degree delta RA = (RA-RQST_RA) * cos(DEC)
dec_del float degree delta DEC = DEC - RQST_DEC
width_sl2 float arcsec SL2 width of profile
width_sl1 float arcsec SL1 width of profile
width_ll2 float arcsec LL2 width of profile
width_ll1 float arcsec LL1 width of profile
ra1 float degree Primary extraction corner 1 RA J2000
dec1 float degree Primary extraction corner 1 DEC J2000
ra2 float degree Primary extraction corner 2 RA J2000
dec2 float degree Primary extraction corner 2 DEC J2000
ra3 float degree Primary extraction corner 3 RA J2000
dec3 float degree Primary extraction corner 3 DEC J2000
ra4 float degree Primary extraction corner 4 RA J2000
dec4 float degree Primary extraction corner 4 DEC J2000
ra1_sl float degree SL extraction corner 1 RA J2000
dec1_sl float degree SL extraction corner 1 DEC J2000
ra2_sl float degree SL extraction corner 2 RA J2000
dec2_sl float degree SL extraction corner 2 DEC J2000
ra3_sl float degree SL extraction corner 3 RA J2000
dec3_sl float degree SL extraction corner 3 DEC J2000
ra4_sl float degree SL extraction corner 4 RA J2000
dec4_sl float degree SL extraction corner 4 DEC J2000
ra1_ll float degree LL extraction corner 1 RA J2000
dec1_ll float degree LL extraction corner 1 DEC J2000
ra2_ll float degree LL extraction corner 2 RA J2000
dec2_ll float degree LL extraction corner 2 DEC J2000
ra3_ll float degree LL extraction corner 3 RA J2000
dec3_ll float degree LL extraction corner 3 DEC J2000
ra4_ll float degree LL extraction corner 4 RA J2000
dec4_ll float degree LL extraction corner 4 DEC J2000
heritagefilename char full path filename to product in SHA
table char HTML link to spectrum
enhid int Spitzer database Enhanced Product ID
campid int Campaign ID in Spitzer database
obsrvr char Name of observer
progid int Observation program ID
wave_min float micron wavelength of first data line
wave_max float micron wavelength of last data line
filetype char Type of file (always "Table")
filedesc char File description (always "IRS Merged Spectrum")
instmode char Instrument mode (always "Irs Stare")
equinox int Equinox of observation (always 2000)