HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science

DAILY REPORT # 4291

PERIOD COVERED: UT February 01, 2007 (DOY 032)

OBSERVATIONS SCHEDULED

WFPC2 11025

WFPC2 Cycle 15 CTE Monitor

Monitor CTE changes during Cycle 15 Test for chip-to-chip differences in CTE

FLIGHT OPERATIONS SUMMARY:

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

HSTARS: 10666 - MNCIINPR(NCS Circulator Inlet Pressure) Limit Violation The CCS mnemonic (MNCIINPR) Nicmos Cooling System Circulator Inlet Pressure at 033/00:26:22 broke out of limit Low=47 7798 psia intermittently PRD low limit is 50 0 psia NICMOS is currently in operate mode

COMPLETED OPS REQUEST: (None)

COMPLETED OPS NOTES: (None)

                     SCHEDULED           SUCCESSFUL

FGS GSacq 01 01 FGS REacq 00 00 OBAD with Maneuver 02 02

SIGNIFICANT EVENTS:

Flash Report: NICMOS NICMOS is now in its nominal SAA Oper configuration with all 3 buffer boxes turned on During the initial NICMOS recovery, buffer box 2 was below its operational limit temperature of -12degC Ops Request 18013 was executed at 032/23:07:27 to turn on buffer boxes 1 and 3, side a, to aid in the warm-up of buffer box 2 Buffer box 2 did reach operational temperatures, and Ops Request 18008 was successfully executed to turn on buffer box 2, side a Finally, at 033/ 00:25:22, Ops Request 18014 was executed to turn on side b of all 3 buffer boxes NICMOS is now in SAA Oper and prepared to proceed with science operations

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