code: def parse_skypos(ra, dec):
      
      rval = make_val_float(ra)
      dval = make_val_float(dec)
      if rval is None:
          rval, dval = radec_hmstodd(ra, dec)
      return rval, dval
docs: Function to parse RA and Dec input values and turn them into decimal
      degrees
  
      Input formats could be:
          ["nn","nn","nn.nn"]
          "nn nn nn.nnn"
          "nn:nn:nn.nn"
          "nnH nnM nn.nnS" or "nnD nnM nn.nnS"
          nn.nnnnnnnn
          "nn.nnnnnnn"