2.2 The calib directory

It is intended to contain calibration data files, which are described elsewhere.
The software will look (at open time, for files designated in the CALIB category) in the appropriate subdirectory of $XASTOP/calib for such files, although one can override the standard calibration files with private copies using the mycaldir XAS variable to point to an alternate location.

The directory has the following subdirectory arrangement :

• general
  currently empty, intended for spacecraft independent data
• one directory for any other spacecraft mission (this can be accessed setting the spacecraft XAS variable.
  The only one officially supported so far is
• sax
  For calibration data related to the BeppoSAX mission, arranged in subdirectories
  • sc
    contains descriptive files on spacecraft telemetry packet and HK parameters
  • lecs
    contains unofficial files for the LECS instrument (both descriptive of telemetry and HK and instrument calibration data)
  • mecs
    contains files for the MECS instrument (both descriptive of telemetry and HK and full instrument calibration data)
  • hpgs
    contains files for the HPGSPC instrument (both descriptive of telemetry and HK and a few instrument calibration data)
  • pds
    contains files for the PDS instrument (both descriptive of telemetry and HK and the needed instrument calibration data)
  • wfc
    is reserved for files for the WFC instruments (currently unused)

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