CalDB 4.5.4 Release Notes
NOTE: This version was not released to the public.
SDP Installation Date: 2013-08-22T19:40:00 (UTC) with DS 8.5
CalDB 4.5.4 is an upgrade to the Chandra CalDB, which includes only header changes to the following items:
- ACIS T_GAIN Epochs 2-39 for warm archival ERs
- ACIS CTI file 2000-01-29
- ACIS -120C non-CTI DET_GAIN
- ACIS -120C non-CTI OSIP
as well as regenerated versions of the HRC and DEFAULT branch index files. These upgrades are necessary for the Chandra CalDB 4 software (called "libcaldb4" in the DS and CIAO). The new CalDB 4 library will be released with CIAO 4.5 later this month, and is being installed in DS software version 8.5.
CalDB 4.5.4 will not be released separately to CIAO users; instead it will be included in the CalDB 4.5.5 release with CIAO 4.5 later this month. CalDB 4.5.4 will have no discernable affect on CIAO users.
II. SUMMARY OF CHANGES
Epochs 2 and 3:
For epochs 4-39, the FP_TEMP boundary condition has been reset from (142.2-158.2)K, to (151.16-188.16)K. For epochs 2-3, the FP_TEMP boundary condition has been reset to (151.16-162.16)K. Epochs 2 and three are different because of some planned -110C ACIS Calibration OBS_IDs were taken during the Summer of 2000, which require that the -110C T_GAIN file be selectable in those cases. These were done in July and August of 2000, which includes those two T_GAIN epochs.