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28 April 2003

HUBBLE SPACE TELESCOPE

DAILY REPORT #3350

PERIOD COVERED: DOY 115-117

Part 5 of 5

WFPC2 9709

POMS Test Proposal: WFII parallel archive proposal

This is the generic target version of the WFPC2 Archival Pure
Parallel program. The program will be used to take paralell images of
random areas of the sky, following the recommendations of the 2002
Parallels Working Group.

WFPC2 9594

WFPC2 CYCLE 11 SUPPLEMENTAL DARKS pt2/3

This dark calibration program obtains 3 dark frames every day to
provide data for monitoring and characterizing the evolution of hot
pixels.

WFPC2/ACS 9601

WFPC2-ACS Photometric Cross-Calibration

This proposal is aimed at providing photometric zeropoint
cross-calibration between the commonly used WFPC2 photometric filter
sets and those that will be used for ACS programs. The proposal
includes observations of globular clusters spanning a wide range in
metallicity, including NGC 2419 and 47 Tuc. In addition, we will
obtain WFPC2 observations of the primary ACS standard star. This
program will produce a valuable tie-in between the WFPC2, ACS and
Sloan filter photometric systems.

FLIGHT OPERATIONS SUMMARY:

Significant Spacecraft Anomalies:
(The following are preliminary reports of potential non-nominal
performance that will be investigated.)

HSTARs:
9000 SA Section 6 (-DD SPA) Current Loss {at}111/0445z
9001 GSACQ(2,1,1) ended in Fine Lock Backup (2,0,2) {at}116/0935z
9002 U2,3RD Update Failure {at}117/1151z
9003 ReAcq(2,1,1) requires 2 attempts to achive finelock data valid
{at}117/1719z
9004 GSACQ(3,0,3) Search Radius Limit Exceeded on FGS#3 {at}117/2008z
9005 NICMOS Timing Pattern Generator Reset {at}117/2114z
9006 G-string core data server/ISPNULL{at}118/0320z
9007 FGS3 Serch Radius Exceeded {at}118/0332z

COMPLETED OPS REQs:
16941-0 Clear NICMOS Error Log {at}117/2233z

OPS NOTES EXECUTED:
1099-1 Change Limits MAMA1 Threshold Voltage (Closed) {at}116/1855z

                      SCHEDULED   SUCCESSFUL  FAILURE TIMES
FGS GSacq                22           21      {at}117/2008z(HSTAR 9004)
FGS REacq                22           21      {at}117/2143z(HSTAR 9004)
FHST Update              53           52      {at}117/1151z(HSTAR 9002)
LOSS of LOCK

SIGNIFICANT EVENTS: None

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