get_atran_from_cache¶
- sofia_redux.instruments.exes.get_atran.get_atran_from_cache(atranfile, resolution)[source]¶
Retrieves atmospheric transmission data from the atran 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:
- atranfilestr
File path to the atran file
- resolutionfloat
Spectral resolution used for smoothing.
- Returns:
- tuple
- filenamestr
Used to update ATRNFILE in FITS headers.
- wavenumpy.ndarray
(nwave,) array of wavelengths.
- unsmoothednumpy.ndarray
2D array containing the atran data from file
- smoothednumpy.ndarray
(nwave,) array containing the smoothed atran data