SOURCE

                  OBS\SOURCE     Name      [Coordinates      ...]      /TYPE
    OBJECT|PHASE|BAND [/VELOCITY Vtype [Vvalue]] [/FLUX Fvalue]

         Selects a source of the specified  type:   OBJECT  for  sources  to
    study,  PHASE  for  Phase calibrator, BAND for Bandpass calibrator.  The
    SOURCE catalog is searched for OBJECT  type  sources,  while  the  PHASE
    catalog  is searched for PHASE and BAND sources.  Source coordinates may
    be in the command line, in the same format as the source catalog, i.e.

    NAME  Syst [Epoch] Lambda       Beta        Vtype  [Velo] [FLUX Value]
    W3OH  EQ   1950.0  02:23:16.50  61:38:57.0  LSR    -45.0   FLUX 3.73

    Where
         Syst is the coordinate system (EQ, HO, GA) and Epoch  its  optional
              epoch.
         Lambda and Beta are the coordinates (in hours and  degrees  for  EQ
              coordinates, in degrees only for HO and GA coordinates).
         Vtype is the reference frame (LSR,  EARTH,  HELIO,  or  NULL  which
              means no Doppler tracking) and Velo the velocity in km/s.
         FLUX is a keyword indicating a value for the continuum flux (in Jy)
              at 3mm.

         The /TYPE option is compulsory, and indicates in wich  catalog  the
    source  should be searched.  PHASE and BAND sources have a velocity type
    NULL to avoid changing the observing frequency between  the  source  and
    the calibrator.

         The /VELOCITY Vtype Vvalue and /FLUX Fvalue options can be used  to
    override the velocity or flux specified in the catalog.