NAME:
  remfit
 PURPOSE:
  Remove old pointing model from new data, create new pointing map data.
 DESCRIPTION:
 CATEGORY:
  Astronomy
 CALLING SEQUENCE:
  remfit,datafile,coeffs,newdata
 INPUTS:
  datafile - Name of pointing data file (created by pntcol.pro)
  coeffs   - Name of file that contains the current pointing data.
  newdata  - Name of file to contain the new raw pointing data.
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
 OUTPUTS:
 KEYWORD OUTPUT PARAMETERS:
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  Written by Marc W. Buie, Lowell Observatory, 2001/12/20