SET WEIGHTS

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SET WEIGHTS

            CLIC\SET WEIGHTS [TSYS ON|OFF] [CALIBRATION ON|OFF]

        Selects  the  way  the weights written in the output file by the command
        TABLE are computed.

        Weights are always proportional to observing time.

        With TSYS ON, data is also weighted by  1/TSYS**2,  where  TSYS  is  the
        equivalent  system  temperature (the geometrical mean of system tempera-
        ture of both antennas, for a given baseline). With TSYS OFF, this weight
        factor is turned off.

        With CALIBRATION ON, data is also weighted by 1/CAL**2, where CAL is the
        amplitude instrumental calibration factor (if any).  If no amplitude in-
        strumental  calibration  function  is applied (absolute amplitude), this
        weighting should have no effect. With CALIBRATION OFF, weights  are  not
        affected by amplitude calibration.

        Default is TSYS ON and CALIBRATION ON, which results in weights equal to
        1/sigma^2, where sigma is the thermal noise in the data.