Sep_24_1999_H64.txt Shift H64
        Start at 1999:265:08:30:00 GMT
                = 1999 Sep 24  7:30pm EDT
        End       1999 Sep 24 10:00pm EDT

   
SOT Lead	Bill Podgorski
SOT SC/ACA	
FOT-SI		
HRC-SI          
ACIS-SI		

Plan: Medium eclipse during real time contact, in rad belts
      Running P17c load.


EVENTS							    DONE	OBSID
--------------						    ----	-----
Start Shift                                             267:2330         1315
----- Real time------ DSS-61 (Madrid)
In radiation belts, See note 1 for state
Start eclipse                                           268:0056
End eclipse                                             268:0205
LOS (planned)                                           268:0205
Attempt to recover COMM after planned Xmitter 
AOS                                                     268:0215
End of shift                                            268:0230

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

1) Chandra configuration at 268:000 was nominal with parameters as follows:

       PCAD MODE   =        NPT
       Stars:      =          5  
       FIDS        =          0 (see note 2)
       RA          =  95.338798 
       DEC         =  80.759593
       ROLL        =  85.854409
       Format      =          2
       OBSID       =       1315
       SIM FA      =       -467
       SIM TSC     =     -99616 (HRC-S)
       HETGA       =        8.2 (IN)
       HETGB       =        6.7 (IN)
       LETGA       =       81.7 (OUT)
       LETGB       =       79.8 (OUT)

       ACIS        = VID Boards OFF
       HRC         = All HV OFF

2) Three ACIS FID lights (2, 4 and 5) were turned on at 267:0623 for OBSID 1103, 
   which is an ACIS-S/HETG observation. These lights are left on for the 
   remainder of the P17 load. These ACIS FIDS were searched for in observation
   1315, but they weren't found because the SIM had been translated to the HRC-S
   position for the rad belt passage. 

3) Eclipse performance looked nominal, but the LOS prevented us from
   observing the peak voltage after exit from eclipse. Telemetry before
   and after LOS indicated nominal performance.

4) Output products for load P18 were produced a little after 7pm EDT. Initial
   review of the load by Bruce Twambly found that the HETG was not retracted
   prior to OBSID 123. There was also a search box overlap of 200 arcsec in 
   one of the star acquisitions and some timing issues associated with monitor
   disabling during sim motions and grating motions. The load will have to
   be rebuilt tomorrow AM. Kevin has been notified of this. Also, mission
   planning is conducting their review now.