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24 March 2003

HUBBLE SPACE TELESCOPE

DAILY REPORT       # 3325

PERIOD COVERED: DOYs 80-82

Part 6 of 6

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 

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

HSTAR 8967:  FHST U2,3FM updates scheduled {at} 083/01:08:30Z and 
083/01:11:15Z failed due to Error Box result failed message "2Failed"
in mnemonics QEBSTFG(0,1,2).  Following GS Acquisition (3,2,3)
passed.  Following FAD scheduled {at} 083/01:22:16Z read errors equaling
54.140, -1.758, and -0.487 arcsec.  Under investigation.The guide
star acquisition for this observation was non-nominal, further
analysis will determine if a repeat observation is required.

HSTAR 8968:  FHST U2,3RD update scheduled {at} 083/03:02:14Z failed
due to Error Box result failed message "2 Failed" in mnemonics
QEBSTFG(0,1) and "2&3 Failed" in mnemonic QEBSTFG2.  Following U1,3FM
updates passed along with GS Acquisition (3,2,3).  Following FAD
scheduled {at} 083/04:25:38Z read errors equaling 5.143, -4.348, and
2.622 arcsec. Under investigation.The guide star acquisition for this
observation was non-nominal, further analysis will determine if a
repeat observation is required. 

HSTAR 8969:  GS Acquisition (2,1,2) {at} 083/06:05:22Z failed to RGA
only Mode due to SRLE on FGS 2 during LOS.  Prior FHST FM update U2,
3FM {at} 083/06:32:49Z and subsequent updates all passed.  Following GS
Acquisition (3,1,3) {at} 083/07:37:37Z passed.  Four Status Buffer
messages (STIS 710) were received due to GS Acquisition failure.  Not
enough time between the two acquisition to scheduled real-time FHST
map. Under investigation.The guide star acquisition for this
observation was non-nominal, further analysis will determine if a
repeat observation is required. 

COMPLETED OPS REQs: None

OPS NOTES EXECUTED: None

                    SCHEDULED     SUCCESSFUL    FAILURE TIMES
FGS GSacq              26             25          083/0650z
FGS REacq              20             20
FHST Update            58             55          083/0108z,
                                                  083/0111z,
                                                  083/0302z
LOSS of LOCK

SIGNIFICANT EVENTS:

Successfully completed Command Communication Controller (CCC) test 
080/13:20Z-14:30Z.  Testing was conducted out of the SMOR using CCCs
located in the SMOR and GDOC.  The Long Duration System test was
started with machines located in the SMOR, MOR, and Building 23
loaded with the following clients:  HSTnet = 646, Backbone = 631,
and Core = 120.

CCS 4.0.2 "C" String Command Testing  followed by additional HITT
Testing scheduled 083/12:00Z - 21:00Z with GDOC SOC, HITT, and CCS
using CCS "C" String  with Release 4.0.2 and PRD S07102.

The purpose of this testing is to very the CCS Ground System can 
effectively command in various modes and scenarios used on-orbit
using CCS Release 4.0.2 on the "C" String.

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