get_wavecal_from_cache¶
- sofia_redux.instruments.fifi_ls.lambda_calibrate.get_wavecal_from_cache(wavecalfile)[source]¶
Retrieves wavelength calibration data from the wavecal cache.
Checks to see if the file still exists, can be read, and has not been altered since last time. If the file has changed, it will be deleted from the cache so that it can be re-read.
- Parameters:
- wavecalfilestr
File path to the wavecal file
- Returns:
- wavecalpd.DataFrame
Wavelength calibration table