Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/journal_tables/A+AS/100/473/

The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:

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J/A+AS/100/473       IRAS pointed observations data           (Assendorp+, 1993)
================================================================================
IRAS pointed observations data processing
       Assendorp R., Wesselius P.R.
      <Astron. Astrophys. Suppl. Ser. 100, 473 (1993)>
      =1993A&AS..100..473A      (SIMBAD/NED Reference)
================================================================================
ADC_Keywords: Infrared sources
Keywords: methods: data analysis - techniques: image processing -
          infrared: general

Abstract:
   We have developed a system to process raw IRAS Pointed Observation (PO) data,
   using software developed at the Laboratory for Space Research, Groningen,
   The Netherlands. Several PO's can be coadded into one image. As an example
   we processed 99 PO's in the Chamaeleon I molecular cloud in to one image
   for every IRAS band. The list of extracted point sources contains some 300
   new IRAS sources, down to a flux level of 21mJy at 12um.



File Summary:
--------------------------------------------------------------------------------
  FileName      Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe             80        .   This file
table6.dat         91      132   Associated Source List (ASL)
table7.dat         49      297   New Source List (NSL)
--------------------------------------------------------------------------------

Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  2  I2     h       RAh      Right ascension (1950)
   4-  5  I2     min     RAm      Right ascension (1950)
   7-  8  I2     s       RAs      Right ascension (1950)
      11  A1     ---     DE-      Declination sign
  12- 13  I2     deg     DEd      Declination (1950)
  15- 18  F4.1   arcmin  DEm      Declination (1950)
  20- 24  F5.1   mJy     F12      []? Flux at 12um
      25  A1     ---   n_F12      [*] When '*' the flux value is in Jy
  27- 31  F5.1   ---     SN12     []? Signal to noise ratio (2)
  33- 35  A3     ---     Cat12    Catalogue in which the flux is listed (1)
  36- 41  F6.1   mJy     F25      []? Flux at 25um
      42  A1     ---   n_F25      [*] When '*' the flux value is in Jy
  44- 49  F6.1   ---     SN25     []? Signal to noise ratio (2)
      50  A1     ---   n_SN25     [*] When '*' only the first quality index in
                                  the table is reported
  51- 53  A3     ---     Cat25    Catalogue in which the flux is listed (1)
  55- 59  F5.1   mJy     F60      []? Flux at 60um
      60  A1     ---   n_F60      [*] When '*' the flux value is in Jy
  62- 67  F6.1   ---     SN60     []? Signal to noise ratio (2)
      68  A1     ---   n_SN60     [*] When '*' only the first quality index in
                                  the table is reported
  69- 71  A3     ---     Cat60    Catalogue in which the flux is listed (1)
  74- 78  F5.1   mJy     F100     []? Flux at 100um
      79  A1     ---   n_F100     [*] When '*' the flux value is in Jy
      83  I1     ---     SN100    []? Signal to noise ratio (2)
      84  A1     ---   n_SN100    [*] When '*' only the first quality index in
                                  the table is reported
  90- 91  A2     ---     Cat100   Catalogue in which the flux is listed (1)
--------------------------------------------------------------------------------
Note (1): P= PO (Pointed Observation) map (Young  E.T. et al. 1985, A users's
          guide to IRAS pointed observation products)
          F= FSS (Faint Source Survey) (Moshir M. et al. 1989 Explanatory
          supplement to the IRAS FSS, IPAC preprint 0044)
          I= IPSC (IRAS Point Source Catalog) (Joint IRAS Science Working Group,
          1988, Infrared Astronomical Satellite, Catalogs and Atlasses,
          Explanatory Supplement, eds Beichman C.A. et al.)
Note (2): Signal to noise if the source is found in the PO map, otherwise it
          is the flux quality from the catalogue(s) mentioned in the
          corresponding column 'C'
--------------------------------------------------------------------------------

Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  2  I2     h       RAh      Right ascension (1950)
   4-  5  I2     min     RAm      Right ascension (1950)
   7-  8  I2     s       RAs      Right ascension (1950)
      11  A1     ---     DE-      Declination sign
  12- 13  I2     deg     DEd      Declination (1950)
  15- 18  F4.1   arcmin  DEm      Declination (1950)
  21- 23  I3     mJy     F12      []? Flux at 12um
  25- 28  F4.1   ---     SN12     []? Signal to noise ratio
  31- 33  I3     mJy     F25      []? Flux at 25um
  36- 39  F4.1   ---     SN25     []? Signal to noise ratio
  42- 44  I3     mJy     F60      []? Flux at 60um
  46- 49  F4.1   ---     SN60     []? Signal to noise ratio
--------------------------------------------------------------------------------

Historical Notes: Keypunched at CDS
================================================================================
(End)                              James Marcout, Simona Mei [CDS]   12-Apr-1995

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