Access to Astronomical Catalogues

VIII/9      Argentina High-Latitude H I Survey     (Colomb 1980)
The Argentina High-Latitude H I Survey
    Colomb F.R., Poppel W.G.L., Heiles C.
   <Astron. & Astrophys. Suppl., 40, 47 (1980)>
   =1980A&AS...40...47C
ADC_Keywords: Radio sources ; Surveys ; Radio lines ; H I data


Description:
    This survey consists  of H I  21-cm spectra covering  the southern sky
    with absolute galactic  latitude  |b|>10  degrees  and  a  declination
    dec←25 degrees.  The observations were made with the 30m telescope of
    the Instituto  Argentino de  Radioastronomia during  1973 to  1977 and
    were described in Colomb et al.  (1977A&AS...29...89C).  The data were
    obtained by keeping the telescope fixed on the meridian at the desired
    declination  and  letting  the  sky  drift  through  the  field.   The
    individual spectra were obtained  with  a  56-channel  filterbank  and
    covering  the velocity range from about  -40 to +40km/s.  The velocity
    resolution is 2km/s, and the beamwidth is 30arcmin.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
catalog.dat      396    55470   Southern sky survey data
software.for      80      459   Two Fortran main codes and several subroutines


Byte-by-byte Description of file: catalog.dat

   Bytes Format Units   Label    Explanations

   1-  6  I6    mdeg    mGLON    Galactic longitude in units of 0.001 degrees
   7- 12  I6    mdeg    mGLAT    Galactic latitude in units of 0.001 degrees
  13- 14  I2    h       RAh      Right ascension (1950)
  15- 16  I2    min     RAm      RA in minutes (1950)
  17- 18  I2    s       RAs      RA in seconds (1950)
      19  A1    ---     DE-      Sign of declination
  20- 21  I2    deg     DEd      [0,90] DEC in degree (1950)
  22- 23  I2    arcmin  DEm      DEC in arcminutes (1950)
  24- 25  I2    arcsec  DEs      DEC in arcseconds (1950)
  26- 27  I2    h       LST.h    Local Standard Time (LST) in hours
  28- 29  I2    min     LST.m    LST in minutes
  30- 31  I2    s       LST.s    LST in seconds
  32- 37  A6   "YYMMDD" ObsDate  Date of observation in yymmdd (year month day)
  38- 47 5I2    ---     Bscan    Bad scan numbers (always 0)
  48- 53  I6    dam/s   Vmin    *Central velocity at channel 1
  54- 59  I6    dam/s   Vmax    *Central velocity at channel 56
      60  I1    ---     Qual     Quality factor (always 0)
  61-396 56I6   0.01K   TA      *Antenna temperature in units of 0.01K

Note on Vmin, Vmax, TA:
    The VLSRs of the 56 channels corresponding to the measured antenna
    temperatures can be obtained by the following FORTRAN statements:
      V1 = Vmin * 0.01  ! in units of km/s
      V56= Vmax * 0.01
      dv = (V56-V1)/55.
      do i = 1, 56
        VLSR(i)= V1 + (i-1)* dv
      enddo


Brief description of software.for:
    FORTRAN codes for use in extracting spectra from the H I surveys of
    Heiles and Habing (VIII/7), Parkes (VIII/8), this catalog (VIII/9),
    Bell Labs (VIII/10), and Weaver and Williams (VIII/11)

History:
  * The catalog was received at ADC in 1992; a brief introduction
    was added at CDS (Francois Ochsenbein).
  * The documentation was added in December 1995 at ADC (C.-H. Joseph Lyu)
  * The documentation was revised in November 2003 at CDS (F. Ochsenbein)

Acknowledgements:
    The General Information on High-latitude 21-cm Line Surveys by Carl
    Heiles (1988), University of California, Berkeley was used to create
    this ReadMe file.
(End)                        C.-H. Joseph Lyu [Hughes STX/NASA]      12-Dec-1995