From: hst-status@stsci.edu
Subject: HST STATUS REPORT, 12/21 - 12/22
Organization: Space Telescope Science Institute
Date: Mon, 28 Dec 1992 18:14:46 GMT

                           HUBBLE SPACE TELESCOPE
                               DAILY REPORT #789

PERIOD COVERED:  0800 EST 12/21/92 - 0800 EST 12/22/92

Daily Status Report as of 357/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FGS 4031 (A Search for Planetary Companions to Low Mass)

       The Fine Guidance Sensors were used to measure the position of star
       Proxima Centauri relative to background reference stars. The intent 
       is to determine the presence of a Jupiter Sized planet in orbit
       around the target star. The observations were monitored by the OSS,
       and no problems were reported. 

   1.2 Completed Three Sets of PC 4714 (Internal Delta Flats)

       The Planetary Camera was used to take three different sets of
       internal delta flat images. All of the observations were received
       and displayed in the OSS. They all were reported to be okay. 

   1.3 Completed GHRS/2 3964 (Dynamics and Energy Balance in Stellar 
       Regions)

       The High Resolution Spectrograph was used to observe the late type
       star HD61421 which is known to have plasma heated to temperature
       above 10,000 K above the photosphere. Four spectral observations
       were received and displayed. A wave length calibration image was
       also taken. A observations were reported to be okay. 

   1.4 Completed FOC/96 3428 (High Voltage Turn On)

       A standard high voltage turn on test was performed using the Faint
       Object Camera. Two internal flat, and one dark observations were
       taken. This was strictly an internal test. All of the observations
       were received and displayed. They all looked okay. 

   1.5 Initiated GHRS/2 2536 (Deuterium in the Local Interstellar Gas)

       The High Resolution Spectrograph's Echelle spectrograph was used to
       observe the interstellar absorption lines in the spectra of white
       dwarf star G191-B2B. A total of five observations have been
       completed , and a sixth observation has been initiated. The first
       two observations included two deflection calibrations, and spiral
       search, and peakup. the fifth observation was a calibration
       spectrum. The sixth observation is the spectral observation of the
       target star. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 3
                                        Successful : 3
                          Scheduled Reacquisitions : 9
                                        Successful : 9
                                    Losses of Lock : 1

                                   (LOL at 356/1312Z)

   2.2 FHST Updates: 

                              Scheduled : 5
                             Successful : 5

   2.3 Significant HSTARs: None

   2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete GHRS/2 2536 (Deuterium in the Local Interstellar Gas)

   3.2 Complete Two Sets of PC 4714 (Internal Delta Flats)

   3.3 Complete Two Sets of S/C 4215 (FGS ITS Test)

   3.4 Uplink Updated Ephemeris Tables, Per MOSES 2871

   3.5 Complete FOS/RD 3816 (White Dwarf Stars)

   3.6 Complete PC 4106 (HST Medium Deep Survey: Low Latitude)

   3.7 Complete WFC-PC 4109 (Rapid Internal Monitor)

4.0 ANOMALY STATUS:
	
   4.1 Significant New Anomalies: None

   4.2 Significant Unresolved Anomalies: None
 
 5.0 SIGNIFICANT FORTHCOMING EVENTS: Nothing at this time
 
                                -END-

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