Dec_20_1999_L150.txt Shift L150
        Start at 1999:354:13:00:00 GMT
                = 1999 Dec 20 8:00am EST
        End       1999 Dec 20 1:00pm EST

   
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_20_1999_L150.txt



SOT Lead	Bill Podgorski
SOT SC/ACA	
FOT-SI		Eric Martin/Andy Northrup
HRC-SI          Jon Chappell/Gerry Austin/Mike Juda/Kathy Daigle
ACIS-SI	        Yousaf Butt
OTHER           

Plan: - Running load DEC1999 load. 
             * Run ACIS CAP 528 to lower FP temp to -125
             * Run CAP's 530, 531 and 532 to install, test and backout
               the continuous dither patch.
             * If time, run CAP 530, ACIS raw mode clocking test

 

EVENTS							    DONE	OBSID
--------------						    ----	-----
Start Shift                                             354:1300         
AOS DSS-27 (Goldstone)                                  354:1625        62249
Chandra status at AOS (see note 1)
Execute CAP 528 to lower FP temp                        354:1639
Start CAP 530 for dither testing                        354:1640
ACIS FP temp dropping                                   354:1646
Complete step 1 CAP 530                                 354:1700
Execte CAP 531 (Step 8A008.3 SAP 8A008)                 354:1721
     to load dither patch
Execute step 8A008.4 of SAP 8A008                       354:1743
     to dither in Normal point mode                     354:1801
Confirm dither                                          354:1803

End of shift                                            354:1800


NOTES/ISSUES/PROBLEMS 
--------------------- 

1) Chandra's state at AOS 354:1625 was:

                                       WAS                   EXPECTED
       PCAD MODE              =       NPNT                       NPNT
       CONTROL LAW FLAG       =       NPNT                       NPNT
       Stars:                 =          5                          5
       FIDS                   =          0                          0
       RA                     = 108.000000 deg                108.000   
       DEC                    = -65.200000 deg                -65.200
       ROLL                   =  18.133244 deg                 18.133
       Format                 =          2                          2
       OBSID                  =      62249                      62249
       SIM FA                 =       -467                       -468
       SIM TSC                =     -99616 (HRC-I)             -99616
       HETGA                  =      80.96 deg (OUT)              OUT  
       HETGB                  =      81.33 deg (OUT)              OUT
       LETGA                  =      80.21 deg (OUT)              OUT
       LETGB                  =      79.08 deg (OUT)              OUT
       EPHIN A-leak           =     
             B-leak           =     
       HRC                    =    Nominal (per HRC team)
       ACIS                   =    Nominal (per ACIS team)