5/26/09 SMOV Morning Meeting Notes
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Summary:
Observatory and instruments continue to perform nominally and according
to plan. WFC3 memory check and ACS science data buffer checks have succeeded. COS
science data buffer check is underway. ACS WFC CCD cooldown is scheduled for later
today.
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- Observatory Status
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PCS/SAC
 Still evaluating jitter floor. See attached set of PCS slides provided by
DSmith.
 Considering configuration changes to investigate jitter (put suspect
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gyro in shutter mode).
In yesterday’s meeting notes, Gyro 3 was incorrectly identified as a
flight spare. It is not; the spare RSU went into the G1,G2 slot.
EPS
 All nominal. SOC peaked at 505Ah. Still running cool ~ -4C.
TCS
 All nominal, and within expectations. Bay 5 good.
I&C
 All Nominal
DMS
 All Nominal.
486FSW
 No one online.
SAFING
 All nominal.
SIC&DH & P/L FSW;
 Bev reports ACS/COS/WFC3 buffer dumps. (See attached buffer dump
summaries)
 ACS ASIC Patch & Dump accomplished
 6 more SBEs.
- SI Status
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WFC3
 HSTAR 11847 – WFC3 safed on IMEB1ST @ 145/13:02z (and recovered,
per yesterday’s meeting notes)
• Need a 441/442 review of thermal limits for current operations,
as well as future safing scenario’s.
• Need to establish a ‘philosophy’ behind the plan.
 Lucy Liu reports that WFC3 memory checks out as expected.
 WFC3 EEPROM, Exec RAM, and PROM memory dumps were collected via
SMS starting at 145/1631. The SSR playback of these dumps began at
145/1651. The Payload FSW team has verified the contents of the memory
dumps are as expected. WFC3 remains in Protect Operate. DHickey
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COS
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FGS/OTA;
 All hardware nominal, one HSTAR (#11845) was submitted for the
failedwalkdown of the ITS on Day 142. Closure will be submitted today.
 There were 6 GSACQs spanning the previous 48 hours, all were successful.
 Forward Plan; 4 GSACQs are planned over the next 24 hours.
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ACS
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STIS
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NICMOS/NCS
 No change.
Darryl Dye reports that ACS RAM buffer #1 memory is as expected.
Forward Plan for Event Flag management w/o HRC still to be decided.
WFC TEC turnon imminent. OR in place.
ASIC timing patch update done.
Still in safe, all voltages and temperatures look good.
Safe to Hold at ~ 8:00 tomorrow. STIS limits OK.
Need to determine our response if Amp B ‘Fails’ again.
The STIS Science Team is awaiting the STIS recovery tomorrow and
memory tests later this week. Science images will begin to be taken next
week, including some images using the amplifier (amp B) that showed
anomalous behavior during the STIS FT. Note that a different amp,
amp D, is used for all science because it has the lowest read noise,
and has not shown any signs of the anomalous behavior seen in
amp B.
P&S Status;
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Mike Kelly reports that the 3 dump files from the "Load COS Buffer With
Zeroes" commanding this afternoon have been processed; no bit flips
occurred on any of the three tests executed. The relevant products have
been posted on the Payload FSW Web page and can be found by navigating
the following links: COS -> Documentation:Software Ops -> FSW Analysis
Reports -> 09145.
The FSW team (i.e. Mike Kelly) completed the COS analysis of the zero-filled
pattern loaded to and dumped from CS Buffer memory earlier this afternoon
and evening. In summary, no bit flips in CS Buffer memory were observed.
JBacinski
Pressure down a telemetry count from yesterday. (~4.5 microTorr)
3B Heater still running around 10 watts.
Calendar/SMS builds;
 SMS152 nearing completion
 SMS159 in work
Replans
 None
Operations
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FOT
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PACOR
 All nominal
Status is all nominal, with one open Ops Request (18447-Set ACS Event
Flag 10 so ACS does not safe) scheduled to be executed on day 147.
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OPUS & Archive
 Last night data for COS proposal 11354 were fast-tracked and more data
from this proposal will be fast-tracked tonight.
 ACS-R ASIC exposures ja7p21a2, a4, and a6 for proposal 11366, errored in
the pre-archive science pipeline due to a missing reference file. M Swam in
DSB says this is due to the predicted value of the gain not being found in the
SPSS database, so a manual workaround will be tried to deal with this.
Note: The files have now been successfully processed. No more are
planned in SMOV [cpb].