To:sot_shift
from: Dan Schwartz
date: 12 Apr 00 , 12:00noon EDT
Subject: SOT shift report, Shift L264
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_12_2000_L264.txt.

Shift L264. 
	Start at 103:12:00  GMT
		 = 08:00am    12 Apr EDT
	End	   12:00 noon 12 Apr
   
SOT Lead	DAS

(Times will be given in GMT on day 103. In general
times are rough, not precise.)

PLAN 
	Continue running load APR0900e. Finish ACIS-S observation of the
cooling flow cluster Abell 2029, OBSID 891, then observe the young energetic
radio pulsar PSR B1757-24, OBSID 753; followed by CTI measurements
surrounding perigee passage. Perform an ACIS-S/HETG observation  of
VELA X-1 after emerging from the radiation belts at 104:10:10.

Next Contacts
 103:19:50 to 21:50
 104:06:20 to 07:20
 104:15:25 to 16:50
 105:01:20 to 02:45
 105:09:50 to 10:50
 105:19:00 to 20:05
 106:05:10 to 07:10
 106:14:00 to 15:00
 106:22:20 to 02:30  ACIS Squeegy test II.

EVENTS
Status at LOS, 103:11:18 was as follows:

       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =    227.748 deg 
       DEC                    =      5.747 deg
       ROLL                   =    118.406 deg
       Format                 =          2
       OBSID                  =        891 (NCG 1569)

       SIM FA                 =       -467
       SIM TSC                =      75624 (ACIS-S)
       HETG                   =        OUT (80.2 deg)
       LETG                   =        OUT (78.7 deg)
        HRC-S HV is ON 
        EPHIN:         A-Leak =  0.4200 mu-a
                       B-Leak =  0.0680 mu-a

NOTES/ISSUES/PROBLEMS
Quick look data:
OBSID 963, ACIS-S observation of NGC 4406, looks good. NOTE: this was
the observation for which we had no fid lights.
Data cannot yet be processed for the current week, since OBS.par files
are not yet ready.
OBSID 433 has not been processed yet due to the large gaps of missing
data. Joy expects to do it this morning, so we can assess how much of
the data is good, and how much needs to be repeated.

Notes from 9am status meeting:
	Three contacts, 5 SSR dumps recovered all data. The modified
load, APR0900e, to allow more measurement time for the ACIS squeegy
mode test on day 106, was uploaded. On-board load is good through
106:23:32. 
	Products were released last night for APR1600 load. Review
today at 2:30pm.
	Products for the DEC1299 load, which is the test for the OFLS
8.1a patch, are expected out today so that a load review can be
performed on Friday.
	Testing of the new guide star catalog is now planned for early
next week. The FOT will do standard runs, and require no SOT support.
	We plan to run CAPs to update the on-board ephemeris
coefficients, and to perform the EIA sequencer test today.
	Products are being prepared for the ACA dark current
measurements. Hope to run this late next week. 
	FOT will exercise the new fine attitude initialization
procedure on the ASVT tomorrow. Planning for an April 21 demo run of
the complete new safe mode recovery procedure.

-------------------------------------------------------
Dan Schwartz,   MS #3
das@head-cfa.harvard.edu  
phone: (617)495-7232    FAX:   (617)495-7356
cell phone: (617)512-5627   
pager: 800-759-8352 PIN 1636502
       or e-mail 1636502@skytel.com 
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