NAME:
  objid2mpc
 PURPOSE:   (one line only)
  Convert a geteph object id to a Minor Planet Center name
 DESCRIPTION:
 CATEGORY:
  Astrometry
 CALLING SEQUENCE:
  objid2mpc,objid,type,name
 INPUTS:
  objid - string with the geteph object id
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
 OUTPUTS:
 KEYWORD OUTPUT PARAMETERS:
 CONFIGURATION:
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
  Only some name can be converted.  if type comes back 'unknown' then the
    input could not be converted.
 PROCEDURE:
 MODIFICATION HISTORY:
 Written by Marc W. Buie, Southwest Research Institute, 2021/04/08