MASK

        CLIC\MASK f1 f2 ...  [/ANTENNA i1 [...]] [/BASELINE  b1 [...]]
        [/RESET]

    This commant causes some flags to be ignored by setting the  antenna  or
    baseline  "mask"  words.  Data flagged will normally not be processed by
    calibration commands. However flags set in the corresponding  mask  word
    will be ignored, causing data to be processed anyway. Flags may be rela-
    tive to antennas or baselines. One of the options /ANTENNA or  /BASELINE
    must therefore be given, with antenna numbers or baseline names as argu-
    ments.

    Supported flag names are:

    - C01 to C08 for bad individual continuum correlator subbands
    - L01 to L08 for bad individual spectral correlator subbands
    - DATA for bad data
    - TSYS for too high system temperature (antenna based only)
    - LOCK for out of lock local oscillator (antenna based only)
    - POINTING for poor pointing (antenna based only)
    - SHADOW for antenna being shadowed by another antenna (ant. based only)
    - SATURATION for too high total power on a particular antenna
    - TIME for time discontinuity
    - DOPPLER for doppler discontinuity
    - REDU for data reduction

    Use option /RESET to remove flags from the mask works.

    MASK with no arguments will list the mask words currently in use.