get_channel¶
- sofia_redux.instruments.fifi_ls.split_grating_and_chop.get_channel(hdul, channel_index=3)[source]¶
Returns RED or BLUE channel extracted from header and data.
If the channel cannot be read from the prime header, it is read from the data header.
- Parameters:
- hdulfits.HDUList
- channel_indexint, optional
data header location determining channel
- Returns:
- str
RED, BLUE, or UNKNOWN