HEADER

 

        CLIC\HEADER

    Displays some header information  on  current  observation.   The   FULL
    format  is  used,  with  the informations selected in command SET FORMAT
    written.  The lines written contain (in output order, but not all  lines
    are necessarily present)

         1.  General information line :
             Observation number and version
             Scan number
             Procedure name
             Source name and type
             Line name
             Telescope name
             Date of observation
             Date of last reduction

         2.  Interferometer Configuration line :
             Number of antennas
             Station numbers
             Number of baselines

         3.  Position information line
             RA or L :  right ascension or longitude (or azimuth)
             DEC or B :  declination or latitude (or elevation)
             Epoch if equatorial coordinates are used
             Offsets in current units
             Type of coordinate (Eq, Ga, Ho)

         4.  Quality information line :
             Tau:  opacity at zenith
             Tsys:  system temperature (outside atmosphere).
             Number of records
             Time:  total integration time on source (minutes)
             El:  elevation of source

         5.  Spectral information lines :
             N:  number of subbands
             N:  number of channels
             I0:  reference channel (real)
             F0:  rest frequency at reference channel
             Df:  frequency resolution (signed)

         6.  Calibration information line :
             B_ef:  Beam efficiency of telescope
             F_ef:  Forward efficiency of telescope
             G_im:  Gain in image band

         7.  Calibration status line :
             Atmospheric calibration done
             Instrumental calibration done
             Passband calibration done

         8.  Pointing corrections line :

         9.  Atmospheric information lines (2) :
             H2O_:  millimeter of precipitable water vapor
             Pamb:  ambient pressure
             Tamb:  ambient (receiver cabin) temperature
             Tchop:  Chopper temperature
             Tcold:  Cold load temperature
             Tatm:  Atmospheric temperature in the signal band
             Tau:  Zenith opacity in the signal band
             Tatm_I:  Atmospheric temperature in the image band
             Tau_I:  Zenith opacity in the signal band