trim_data

sofia_redux.instruments.fifi_ls.split_grating_and_chop.trim_data(hdul, params)[source]

Remove partial ramps and “unpaired” chop plateaus.

Note that 4POINT chop is untested

Assumptions:

  1. file starts with chop0

  2. chop0 and a following chop1 (2POINT) / chop2 (4POINT) makes a pair (chop1 and chop3 makes another pair for 4POINT chop scheme).

  3. no missing ramps except at beginning or end of file

Parameters:
hdulfits.HDUList
paramsdict
Returns:
fits.HDUList