Setting Rest Frequencies

A linecatalog can be used as an argument for set_restfreqs. If a personal line catalog has been used (which has the same size as the number of number of IFs) or linecatalog selection has been used to reduce the number of entries, the line catalog can be used directly as an argument to set_restfreqs, e.g.:

  ASAP>jpl = linecatalog('jpl.tbl')
  ASAP>jpl.set_frequency_limits(23.66,23.75,'GHz')
  ASAP>data = scantable('data.rpf')
  ASAP>data.set_restfreqs(jpl)

If a larger linecatalog is used, individual elements can be used. Use the summary to get the index number of the rest frequency you wish to use. E.g.:

  ASAP>jpl.summary()
  ASAP>data.set_restfreqs([jpl[11],[jpl[21]])

For data with many IFs, such as from MOPS, it is recommended that users creates their own line catalog table for the data and use this to set the rest frequency for each IF.



Malte Marquarding 2007-08-16