The types of data files treated by POINT differ slightly. For Optical
data, the pointing error is relative to a perfect antenna. Hence the POINTPRINT output directly indicates the new pointing
parameter values. For Radio (or Interferometer) data, however, the pointing
error is relative to the previous model, except for the collimations.
Hence POINT
PRINT yields directly COH and COV,
but for all other parameters the POINT results should be added to the
previous values.
In particular, the Radio results can be used in the OBS SETPOINTING command in an incremental way:
SET\POINTING IAZ IAZ+dIaz IEL IEL+dIel/ANTENNA 2where dIaz, dIel are the results given by command POINT