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18.31.1 /CENTER

[CLEAN\]UV_FIELDS RaVar DecVar [Unit] /CENTER Ra Dec /FILE File

Specify the reference center (Pointing and Phase) of the Mosaic UV table with Fields ID. In this case, RaVar and DecVar are true Ra and Dec (angles in the specified Unit), not Offsets. The Offsets are computed from the projection information in the UV table.

Ra and Dec should be in usual sexagesimal notation.

Without /CENTER, RaVar and DecVar are Offsets from the Phase and Pointing center of the Mosaic, as given in the UV data header, unless Unit is ABSOLUTE.