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ACQ_TIMING
A lower lever "autopsy" of all guide star aquisitions, including
information on FGS mode, vehicle guiding mode(scheduled and actual),
FGS search status and radius. It also contains information on all
FHST updates, slews, and occultations. Generally speaking the
ACQ_TIMING information is more engineering oriented.
AEDP_HEADER
One AEDP_HEADER file is produced for each engineering subset file
that OMS reads. It provides information including but not limited to
the time period covered by a given file, the subset AEDP used to
generate the file, the PDB AEDP used to generate the file, and the
telemetry format.
EARTH_AVD
Contains the time from the moment when the FGS default status is
turned ON or OFF to the moment when the vehicle enters or leaves the
earth avoidance zone.
FGS_SAVE
Contains the PMT counts and the FGS star selector angles.
** NOTE: In the FN telemetry format, the star selector angles are
sampled at 20Hz instead of the full 40Hz rate. This was done to avoid
interpolating the time and problems with the compressed data.
GS_ACQ
A full "autopsy" of all guide star acquisitions and vehicle guidance
including information on FGS mode, vehicle guiding mode(scheduled and
actual), FGS search status and radius, guide stars(i.e. magnitude and
count threshold), FGS usage, vehicle jitter, statistics on the jitter
and PMT counts for each observation, loss of lock, and recenternig.
Generally speaking the GS_ACQ information is more observer oriented.
Observation logs (*.cm*)
Three observation log files are produced for each observation. The
CMH file is an ASCII header in keyword format; the CMJ file is a full
time-resolution file containing the pointing and other information in
STSDAS table format; and the CMI file is a 3-second summary of the
full resolution CMJ file with added instrument specific detail.
OMS_ERRORS
This file is a log of all SI errors. Red and yellow limits as well
derived parameters are checked for each SI based on the mode of the
SI. The mode of each SI is determined from the mission schedule.
OMS_SUMMARY
A summary of guide star aquisitions including tracking mode, pmt count
rate, guide star locations, and duration of acquisition. It also
contains statistics on the jitter and PMT counts for each observation,
and loss of lock. Vehicle slews, FHST updates, day/night transitions,
and earth occultations are reported.
PMT_DARK_CNT
A one minute average of the PMT count rate as a function of the
latitude and longitude of the vehicle when the FGS is not being
using for guidance or astrometry is reported.
POWER
Reports on changes in the bus voltage, battery current, PDU current,
and the trickle charge.
RECENTER_OBS
Reports on recentering events only during observations.
RECENTER_OMS
Reports on all recentering events.
THERMAL
Selected temperature for the aft shroud, forward shield, light shield,
primary mirror, seconday mirror, main ring, focal plane, and metering
truss are reported on. This is not a "save" file. Maximums, minimums,
and differences are calculated from equations provided by Lockheed.
HSP/WFPC/FOC/FOS/HRS _SAVE
These files are simply dumps of all telemetry pertinent to a given SI.
** NOTE1: The WFPC and FOC do not conatin every telemetry point
relevant to them. The WFPC save set does not contain the
PROM and RAM telemetry points. The FOC save set is a subset
of the FOC telemetry that was defined by the FOC SI engineer.
** NOTE2: All SI save files output a derived sink temperature that is
calculated by OMS.
omsanal3.html: 11/01/94: (barsh@stsci.edu)
Updated: December 01, 1995