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SET AMPLITUDE

        CLIC\SET AMPLITUDE [ABSOLUTE|RELATIVE] [SCALED|UNSCALED]
        [KELVIN|JANSKY] [ANTENNA|BASELINE]

    This  command  controls  which scaling factor is applied to the data for
    plotting and writing in the output table, in subsequent PLOT  and  TABLE
    commands:

      -  ABSOLUTE  means  that the relative amplitude calibration is not ap-
        plied.

      - RELATIVE means that the relative amplitude  calibration,  as  deter-
        mined  with SOLVE AMPLITUDE, and stored with STORE AMPLITUDE, is ap-
        plied.

      - SCALED means that the absolute amplitude is divided  by  the  source
        flux; SCALED is only used for the command SOLVE AMPLITUDE.

      -  KELVIN|JANSKY  indicates  the  unit in which the amplitude are dis-
        played: either Kelvins (in main-beam brightness temperature) or Jan-
        skys.

    SET AMPLITUDE ABSOLUTE forces SET AMPLITUDE KELVIN since the uncalibrat-
    ed data are measured in Kelvins. With SET AMPLITUDE RELATIVE, the ampli-
    tudes are in Janskys, since a calibrator of known flux has been used for
    reference. If the default is overridden (SET AMPLITUDE  ABSOLUTE  JANSKY
    or  SET  AMPLITUDE  RELATIVE KELVIN), conversion factors (=antenna effi-
    ciencies) are taken from the scan headers; these factors may  be  deter-
    mined by SOLVE FLUX and stored by STORE FLUX.

    SET  AMPLITUDE ANTENNA|BASELINE switches between Antenna-based and Base-
    line-based amplitude calibrations.  This switch will be active for SOLVE
    AMPLITUDE  (calibration  curve determination), STORE AMPLITUDE (calibra-
    tion curve storing operation), and SET AMPLITUDE RELATIVE (application).
    Both  baseline-based  and antenna-based calibration curves may be stored
    alongside in the data header, independently of each other. Using SET AM-
    PLITUDE ANTENNA is recommended.


Gildas manager 2018-08-19