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MODIFY POSITION

        LAS\MODIFY POSITION Lambda Beta

    Change  the  central  position  for the source to (lambda_0,beta_0). The
    offsets are also modified, as to be consistent with the new central  po-
    sition.  This  command is usefull when different parts of one source are
    mapped relative to several reference positions. Only RADIO projection is
    handled.

    If the coordinate system is EQuatorial:
          lambda = lambda_0 x 12 /pi
          beta   = beta_0   x 180/pi
    If the coordinate system is GALactic:
          lambda = lambda_0 x 180/pi
          beta   = beta_0   x 180/pi


Gildas manager 2011-09-07