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HUBBLE SPACE TELESCOPE
DAILY REPORT # 3649
PERIOD COVERED: DOY 189
OBSERVATIONS SCHEDULED - No programs executed due to safemode entry.
Intercept Science SMS expected @ 190/22:00Z.
FLIGHT OPERATIONS SUMMARY:
Significant Spacecraft Anomalies: (The following are preliminary
reports of potential non-nominal performance that will be
HSTAR 9472: Main Baffle 6 Temperature (EMNBF6T) flagged OOL red high
at -13.987 °C for one sample @ 189/09:28:35Z. Back in bounds @
189/09:29:05Z. Under investigation.
COMPLETED OPS REQs:
17215-3 - ZGSP Recovery - Rate Gyro Reconfiguration @ 189/1455z
17216-0 - ZGSP Recovery - Coarse Attitude Determination @ 189/1537z
FRS SAC Special Request # 3; ARU U/L @ 189/1620z
17213-0 - Open +DD SPA Trim Relay @ 189/1752z
17220-0 - Enable Magnetic Field Model Preview Mode @ 189/1755z
17219-1 - Clear SI (ACS & STIS) Engineering Data Reports @ 189/1757z
17222-0 - Fine Attitude Determination & Bias Calculation @ 189/1906z
17222-0 - Fine Attitude Determination & Bias Calculation @ 189/2228z
17222-0 - Fine Attitude Determination & Bias Calculation @ 190/0011z
FRS Gyro Calibration Request # 72; LB Bias U/L @ 190/0143z
17222-0 - Fine Attitude Determination & Bias Calculation @ 190/0200z
17223-0 - Uplink N02Z5260C and set ATP [email protected] 190/0229z
FRS SAC Special Request # 8; ARU/PRT U/L @ 190/0302z
17222-0 - Fine Attitude Determination & Bias Calculation @ 190/0322z
17218-2 - ZGSP Recovery Procedure @ 190/0343z
OPS NOTES EXECUTED: None
SCHEDULED SUCCESSFUL FAILURE TIMES
FGS GSacq 0 0
FGS REacq 0 0
FHST Update 0 0
LOSS of LOCK
Executing Health and Safety (H&S)/Science Instrument (SI) Recovery SMS
SB190O00 (190/04:00Z - 190/22:00Z)
Recovery from Zero Gyro Sun Point (ZGSP) Safemode commenced @
189/14:41Z (OR 17218-2 with attached, red-lined Recovery from Zero
Gyro Procedure 7A). Transition from ZGSP to Software Sun Point
occurred @ 189/15:37Z. Aperture Door was opened @ 189/16:41Z.
Intercepted H&S load @ 190/04:00Z. Started SI recovery @ 190/07:00Z.
ZGSP recovery complete @ 190/03:43Z. Intercept Science SMS expected @
Loaded RGA Scale Factor/Alignment and Gyro Bias Offset Tables (69 and
156) @ 189/14:55Z (OR 17215-3 with COP 3.48a, Section D, Steps D1 -
D5, D7, and D9 and ROP DF-1A). Dumped and compared Table 69 and 156.
No miscompares or missing data.
Performed ZGSP Recovery Coarse Attitude Determination @ 189/15:37Z (OR
17216 with COP 3.46).
Opened +DD SPA Trim Relay @ 189/17:52Z (OR 17213 with COP 4.22).
Enabled Magnetic Field Model Preview Mode @ 189/17:55Z (OR 17220 with
Fine Attitude Determination and Bias Calculation @ 189/19:06Z,
189/22:28Z, 190/00:11Z, 02:00Z, and 03:22Z (OR 17222). Uplinked
N02Z5260C and set ATP Pointer @ 190/02:29Z (OR 17223).
Cleared ACS and STIS Engineering Data Reports (MSAFINT1, MSAFINT3) @
189/17:57Z (OR 17219 with ROP NS-05). These reports were both set
upon ACS and STIS entry into safemode when vehicle entered ZGSP.
Reports need to be cleared prior to the start of SI recoveries in the
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