HUBBLE SPACE TELESCOPE

   DAILY REPORT #2526

PERIOD COVERED:  0000Z (UTC) 12/26/99 - 0000Z (UTC) 12/27/99

Daily Status Report as of 361/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

        No Servicing Mission Observatory Verification (SMOV) or normal 
science observations were conducted during the period of this report.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:

                                         No activity

2.2 FHST Updates:

        The update following the attitude reference update (mentioned in 
2.3) was successful.

2.3 Operations Notes:

        With the completion of Servicing Mission 3A (SM3A), HST activities 
were commanded by the Health and Safety load which is now being executed 
(from 360/1500Z until 361/1200Z).  SMOV and science activity will begin at 
361/1200Z, the beginning of the STScI intercept Science Mission Specification.

        A high gyro bias update was executed at 361/0138Z per an operations 
request.

        An attitude reference update was uplinked at 361/0928Z.

        An SSR engineering data playback was completed at 361/1007Z.

        A low gyro bias update was performed at 361/1103Z per an operations 
request.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Commencement of SMOV, and normal science observations and calibrations.

/CAW