get_spatial_from_cache

sofia_redux.instruments.fifi_ls.spatial_calibrate.get_spatial_from_cache(spatialfile, obsdate)

Retrieves spatial data from the spatial 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:

spatialfilestr

File path to the spatial file

obsdateint

Observation date

Returns:

arg1, arg2

arg1str or dict

If reading an offsets file, arg1 will be the filename. If reading a coefficients file, arg1 will be a dictionary of coefficients.

arg2numpy.ndarray or dict

If reading an offsets file, arg2 will be an array of offsets. If reading a coefficients file, arg2 will be a dictionary of secondary coefficients.