Hubble Space Telescope COS filenames

COS filenames

Note: The COS files names are all starting with the letter 'L'

Note: The 9th character of an association of simple observation is always '0' at CADC

Note: Please consult the full documentation.

COS data utilizes a modified naming convention from other HST instruments. In, particular COS FUV files can have TWO suffixes. The first suffix identifies the filetype and the second suffix if present identifies the FUV detector segment. For the remainder of this document the use of "suffix" will refer to the first suffix which identifies the filetype and will always include filetypes with the additional FUV segment suffix if they exist.