Instrument Filenames

This page collects information about the filenames associated with every HST dataset. The letters in brackets are used as the first letter of the filenames for that instrument. Since the calibration system in use produce a variety of files and their nomenclature is not necessarily standard across all instruments, we encourage you to consult the table below for a precise description of each files delivered by the HST archive system at the ST-ECF. For further details please consult the HST Data Handbook.