HUBBLE SPACE TELESCOPE

       DAILY REPORT #2507
PERIOD COVERED:  0000Z (UTC) 11/23/99 - 0000Z (UTC) 11/24/99

Daily Status Report as of 328/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

Since HST remains in Zero Gyro Sun Point (ZGSP), no science observations 
were performed.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:

                                         No activity

    2.2 FHST Updates:

                                         No activity

    2.3 Operations Notes:

        The HST continues in ZGSP.

        The SSR EDAC error counter was cleared once using ROP SR-1.

        DSN sites were again utilized to dump engineering data to the ground.

        HSTAR 7276 was written when NICMOS safed itself at 326/193618Z, 
shortly after the instrument had been recovered to boot mode.

        At 327/130802Z, side 2 of the STIS low voltage power supply S/C 
voltage flagged out-of-limits high at 33.26 volts.  HSTAR 7375 was written.

        The Time Base Recharge Ratio Buffer was re-set at 327/1530Z.

        The NSSC-1 status buffer was dumped and re-set at 327/2039Z as 
directed by ROP NS-3.

        As documented in HSTAR 7377, at 327/144720Z, the NICMOS 28 volt bus 
voltage for side 1 (NC28VIN1) flagged our-of-limits high at 31.608030 
volts.  Per an operations note, this parameter was adjusted at 328/0334Z.

        Note: The next Daily Report will be issued on November 29, 
1999.  Enjoy the holiday!

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Servicing Mission 3A, currently scheduled for December 9, 1999.

/CAW