CALIBRATE

        LAS\CALIBRATE [KEY val] [KEY val] ...
          No arguments: Display the calibration parameters.
          Called with a list of arguments in the form "KEY value", where KEY
    stands for BEAM_EFF, FORWARD_EFF, GAIN_IMAGE, H2O, P_AMB, T_AMB, T_CHOP-
    PER or T_COLD, and value is the corresponding value for, respectively, a
    (new)  Beam  efficiency, Forward efficiency, Image/Signal gain ratio, mm
    of water vapor, ambient temperature,  hot  load  (chopper)  temperature,
    cold load temperature, will recompute the calibration, update the header
    and rescale the spectrum accordingly.