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MODIFY POSITION

        LAS\MODIFY POSITION Lambda Beta

    Change  the projection center to (lambda_0,beta_0). The offsets are also
    modified, as to be consistent with the center. This command  is  usefull
    when different parts of one source are mapped relative to several refer-
    ence positions. Only RADIO projection is supported.

    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 2015-03-01