XTENSION= 'TABLE ' / Table extension BITPIX = 8 / Character data NAXIS = 2 / Simple 2-D matrix NAXIS1 = 240 / Number of characters per record NAXIS2 = 173044 / Number of records in the file PCOUNT = 0 / No "random" parameters GCOUNT = 1 / Only one group TFIELDS = 58 / Number of data fields per record EXTNAME = 'FSC_Data' / IRAS Faint Source Catalog - main data file EQUINOX = 1950.0 / Equinox of coordinates AUTHOR = 'IPAC ' REFERENC= 'Version 2.0' DATE = '12/09/90' / Date FITS table verified (dd/mm/yy) COMMENT This FITS header is NOT a complete scientific document for the subject COMMENT catalog. It serves only as a minimal description of the general COMMENT format and structure of the data file. COMMENT A copy of "Explanatory Supplement to the Faint Source Survey", COMMENT Version 2, should be used to answer questions about the data COMMENT in the FSC. COMMENT Names which refer to each of the four IRAS bands of 12, 25, 60 and COMMENT 100 microns are suffixed with the numerals 12, 25, 60 and 100. COMMENT For example Fnu_12 is the flux density at 12 microns. TTYPE1 = 'Name ' / Source name TBCOL1 = 1 / Start column TFORM1 = 'A12 ' / Fortran format TTYPE2 = 'RAH ' / Hours RA, equinox 1950.0, epoch 1983.5 TBCOL2 = 13 / Start column TFORM2 = 'I2 ' / Fortran format TUNIT2 = 'h ' / Units are hours TTYPE3 = 'RAM ' / Minutes RA, equinox 1950.0, epoch 1983.5 TBCOL3 = 15 / Start column TFORM3 = 'I2 ' / Fortran format TUNIT3 = 'min ' / Units are minutes of time TTYPE4 = 'RAS ' / Seconds RA, equinox 1950.0, epoch 1983.5 TBCOL4 = 17 / Start column TFORM4 = 'I3 ' / Fortran format TUNIT4 = 's ' / Units are deci-seconds of time TTYPE5 = 'DecSign ' / Sign of DEC, equinox 1950.0, epoch 1983.5 TBCOL5 = 20 / Start column TFORM5 = 'A1 ' / Fortran format TTYPE6 = 'DecD ' / Degrees Dec, equinox 1950.0, epoch 1983.5 TBCOL6 = 21 / Start column TFORM6 = 'I2 ' / Fortran format TUNIT6 = 'deg ' / Units are degrees TTYPE7 = 'DecM ' / Minutes Dec, equinox 1950.0, epoch 1983.5 TBCOL7 = 23 / Start column TFORM7 = 'I2 ' / Fortran format TUNIT7 = 'arcmin ' / Units are minutes of arc TTYPE8 = 'DecS ' / Seconds Dec, equinox 1950.0, epoch 1983.5 TBCOL8 = 25 / Start column TFORM8 = 'I2 ' / Fortran format TUNIT8 = 'arcsec ' / Units are seconds of arc TTYPE9 = 'UncMajor' / Uncertainty ellipse major axis TBCOL9 = 27 / Start column TFORM9 = 'I3 ' / Fortran format TUNIT9 = 'arcsec ' / Units are seconds of arc TTYPE10 = 'UncMinor' / Uncertainty ellipse minor axis TBCOL10 = 30 / Start column TFORM10 = 'I3 ' / Fortran format TUNIT10 = 'arcsec ' / Units are seconds of arc TTYPE11 = 'PosAng ' / Uncertainty ellipse position angle TBCOL11 = 33 / Start column TFORM11 = 'I3 ' / Fortran format TUNIT11 = 'deg ' / Units are degrees COMMENT PosAng: measured in degrees East of North between the major axis of COMMENT PosAng: the ellipse and the local equatorial meridian. TTYPE12 = 'Nobs_12 ' / Number of times observed at 12um TBCOL12 = 36 / Start column TFORM12 = 'I3 ' / Fortran format TNULL12 = ' ' / Null value COMMENT Nobs is NULL when the corresponding band is an upper limit (FQual = 1). TTYPE13 = 'Nobs_25 ' / Number of times observed at 25um TBCOL13 = 39 / Start column TFORM13 = 'I3 ' / Fortran format TNULL13 = ' ' / Null value TTYPE14 = 'Nobs_60 ' / Number of times observed at 60um TBCOL14 = 42 / Start column TFORM14 = 'I3 ' / Fortran format TNULL14 = ' ' / Null value TTYPE15 = 'Nobs_100' / Number of times observed at 100um TBCOL15 = 45 / Start column TFORM15 = 'I3 ' / Fortran format TNULL15 = ' ' / Null value TTYPE16 = 'Fnu_12 ' / Non-color corrected flux density at 12um TBCOL16 = 48 / Start column TFORM16 = 'E9.3 ' / Fortran format TUNIT16 = 'Jy ' / Units are Janskys TNULL16 = ' ' / Null value COMMENT Fnu is only NULL in the rare instance when there is insufficient COMMENT information available to make a good estimate of the upper limit. TTYPE17 = 'Fnu_25 ' / Non-color corrected flux density at 25um TBCOL17 = 57 / Start column TFORM17 = 'E9.3 ' / Fortran format TUNIT17 = 'Jy ' / Units are Janskys TNULL17 = ' ' / Null value TTYPE18 = 'Fnu_60 ' / Non-color corrected flux density at 60um TBCOL18 = 66 / Start column TFORM18 = 'E9.3 ' / Fortran format TUNIT18 = 'Jy ' / Units are Janskys TNULL18 = ' ' / Null value TTYPE19 = 'Fnu_100 ' / Non-color corrected flux density at 100um TBCOL19 = 75 / Start column TFORM19 = 'E9.3 ' / Fortran format TUNIT19 = 'Jy ' / Units are Janskys TNULL19 = ' ' / Null value TTYPE20 = 'FQual_12' / Flux density quality at 12um TBCOL20 = 84 / Start column TFORM20 = 'I1 ' / Fortran format TTYPE21 = 'FQual_25' / Flux density quality at 25um TBCOL21 = 85 / Start column TFORM21 = 'I1 ' / Fortran format TTYPE22 = 'FQual_60' / Flux density quality at 60um TBCOL22 = 86 / Start column TFORM22 = 'I1 ' / Fortran format TTYPE23 = 'FQual_100' / Flux density quality at 100um TBCOL23 = 87 / Start column TFORM23 = 'I1 ' / Fortran format TTYPE24 = 'Relunc_12' / Percent rel. flux density uncertainty at 12um TBCOL24 = 88 / Start column TFORM24 = 'I3 ' / Fortran format TNULL24 = ' ' / Null value TTYPE25 = 'Relunc_25' / Percent rel. flux density uncertainty at 25um TBCOL25 = 91 / Start column TFORM25 = 'I3 ' / Fortran format TNULL25 = ' ' / Null value TTYPE26 = 'Relunc_60' / Percent rel. flux density uncertainty at 60um TBCOL26 = 94 / Start column TFORM26 = 'I3 ' / Fortran format TNULL26 = ' ' / Null value TTYPE27 = 'Relunc_100' / Percent rel. flux density uncertainty at 100um TBCOL27 = 97 / Start column TFORM27 = 'I3 ' / Fortran format TNULL27 = ' ' / Null value TTYPE28 = 'MinRel ' / Percent minimum source reliability TBCOL28 = 100 / Start column TFORM28 = 'I2 ' / Fortran format TTYPE29 = 'SNR_12 ' / SNR at 12um TBCOL29 = 102 / Start column TFORM29 = 'E7.1 ' / Fortran format TNULL29 = ' ' / Null value TTYPE30 = 'SNR_25 ' / SNR at 25um TBCOL30 = 109 / Start column TFORM30 = 'E7.1 ' / Fortran format TNULL30 = ' ' / Null value TTYPE31 = 'SNR_60 ' / SNR at 60um TBCOL31 = 116 / Start column TFORM31 = 'E7.1 ' / Fortran format TNULL31 = ' ' / Null value TTYPE32 = 'SNR_100 ' / SNR at 100um TBCOL32 = 123 / Start column TFORM32 = 'E7.1 ' / Fortran format TNULL32 = ' ' / Null value TTYPE33 = 'LocSNR_12' / Local SNR at 12um TBCOL33 = 130 / Start column TFORM33 = 'E7.1 ' / Fortran format TNULL33 = ' ' / Null value COMMENT LocSNR values sometimes have the value 0, distinct from NULL. COMMENT This happens when there were too few observations in the pixel COMMENT containing the peak signal to estimate the noise there. TTYPE34 = 'LocSNR_25' / Local SNR at 25um TBCOL34 = 137 / Start column TFORM34 = 'E7.1 ' / Fortran format TNULL34 = ' ' / Null value TTYPE35 = 'LocSNR_60' / Local SNR at 60um TBCOL35 = 144 / Start column TFORM35 = 'E7.1 ' / Fortran format TNULL35 = ' ' / Null value TTYPE36 = 'LocSNR_100' / Local SNR at 100um TBCOL36 = 151 / Start column TFORM36 = 'E7.1 ' / Fortran format TNULL36 = ' ' / Null value TTYPE37 = 'Area_12 ' / Number of pixels above threshold at 12um TBCOL37 = 158 / Start column TFORM37 = 'I3 ' / Fortran format TNULL37 = ' ' / Null value TTYPE38 = 'Area_25 ' / Number of pixels above threshold at 25um TBCOL38 = 161 / Start column TFORM38 = 'I3 ' / Fortran format TNULL38 = ' ' / Null value TTYPE39 = 'Area_60 ' / Number of pixels above threshold at 60um TBCOL39 = 164 / Start column TFORM39 = 'I3 ' / Fortran format TNULL39 = ' ' / Null value TTYPE40 = 'Area_100' / Number of pixels above threshold at 100um TBCOL40 = 167 / Start column TFORM40 = 'I3 ' / Fortran format TNULL40 = ' ' / Null value TTYPE41 = 'CatNbr ' / Number of nearby catalog sources TBCOL41 = 170 / Start column TFORM41 = 'I2 ' / Fortran format TTYPE42 = 'ExtNbr_12' / Number of nearby extractions at 12 um TBCOL42 = 172 / Start column TFORM42 = 'I2 ' / Fortran format TTYPE43 = 'ExtNbr_25' / Number of nearby extractions at 25 um TBCOL43 = 174 / Start column TFORM43 = 'I2 ' / Fortran format TTYPE44 = 'ExtNbr_60' / Number of nearby extractions at 60 um TBCOL44 = 176 / Start column TFORM44 = 'I2 ' / Fortran format TTYPE45 = 'ExtNbr_100' / Number of nearby extractions at 100 um TBCOL45 = 178 / Start column TFORM45 = 'I2 ' / Fortran format TTYPE46 = 'Cirrus ' / Number of nearby 100 um-only extractions TBCOL46 = 180 / Start column TFORM46 = 'I2 ' / Fortran format TTYPE47 = 'Confuse ' / Confusion flag, 1 per band, hex-encoded TBCOL47 = 182 / Start column TFORM47 = 'I2 ' / Fortran format TTYPE48 = 'NoisCor_12' / Noise correction factor at 12um TBCOL48 = 184 / Start column TFORM48 = 'F5.2 ' / Fortran format TTYPE49 = 'NoisCor_25' / Noise correction factor at 25um TBCOL49 = 189 / Start column TFORM49 = 'F5.2 ' / Fortran format TTYPE50 = 'NoisCor_60' / Noise correction factor at 60um TBCOL50 = 194 / Start column TFORM50 = 'F5.2 ' / Fortran format TTYPE51 = 'NoisCor_100' / Noise correction factor at 100um TBCOL51 = 199 / Start column TFORM51 = 'F5.2 ' / Fortran format TTYPE52 = 'NID ' / Number of positional associations TBCOL52 = 204 / Start column TFORM52 = 'I2 ' / Fortran format TTYPE53 = 'IDType ' / Type of object TBCOL53 = 206 / Start column TFORM53 = 'I2 ' / Fortran format TNULL53 = ' ' / Null value COMMENT IDType is NULL when there are no associations (NID = 0). TTYPE54 = 'NoisRat_12' / Ratio of 85% to 68% of flux distribution, 12um TBCOL54 = 208 / Start column TFORM54 = 'F5.3 ' / Fortran format TTYPE55 = 'NoisRat_25' / Ratio of 85% to 68% of flux distribution, 25um TBCOL55 = 213 / Start column TFORM55 = 'F5.3 ' / Fortran format TTYPE56 = 'NoisRat_60' / Ratio of 85% to 68% of flux distribution, 60um TBCOL56 = 218 / Start column TFORM56 = 'F5.3 ' / Fortran format TTYPE57 = 'NoisRat_100' / Ratio of 85% to 68% of flux distribution, 100um TBCOL57 = 223 / Start column TFORM57 = 'F5.3 ' / Fortran format TTYPE58 = 'Spare ' / Spare space for expansion TBCOL58 = 228 / Start column TFORM58 = 'A13 ' / Fortran format END