To:sot_shift
from: Dan Schwartz
date: 04 May 01, 12:00noon EDT
Subject: SOT shift report 2001-05-04 L652
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/May_04_2001_L652.txt.

Shift L652. 
	Start at 124:12:00  GMT
		 = 08:00am    04 May EDT
	End	   12:00 noon 04 May
   
SOT Lead	DAS
Spac/Aspect	
FOT/Sci liason	
HRC		
ACIS 		

(Times will be given in GMT on day 124.)

PLAN
----
Continue running load Apr 2901A. Finish CTI measurements during
perigee egress and then start 31 hour ACIS-I observation 2228 of the
distant cluster of galaxies RX J1317.4+2911. ACIS-I observation 2204
of the cluster A2034 will complete the orbit and the week.

Next Comms:
 124:21:00 to 22:00
 125:06:00 to 07:00
 125:15:00 to 17:00
 126:00:00 to 01:00
 126:09:00 to 10:00
 126:12:00 to 19:00 Previously reserved for OTG patch checkout, 

Orbital events:
 2001:125:13:07:36.076    241       EAPOGEE       ORBIT APOGEE 
 2001:126:20:50:42.256    241       EPERIGEE      ORBIT PERIGEE
 2001:128:04:34:46.596    242       EAPOGEE       ORBIT APOGEE 
 2001:129:12:18:01.609    242       EPERIGEE      ORBIT PERIGEE
 2001:130:20:02:04.274    243       EAPOGEE       ORBIT APOGEE

EVENTS
------
Status at AOS, 124:12:02, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          6 
       FIDS                   =          0
       RA                     =    210.002 deg 
       Dec                    =      0.001 deg
       ROLL                   =    214.553 deg
       Format                 =          2
       OBSID                  =      61649 CTI measurement
       SIM FA                 =       -467
       SIM TSC                =     -99616 (HRC-S)
       HETG                   =        OUT (79.84 deg)
       LETG                   =        OUT (78.34 deg)
        HRC-S HV is ON 
       EPHIN Geom             =       LARG
             A-leak           =     0.4240 mu-a
             B-leak           =     0.0800 mu-a
Ascending through 70091 km. ACIS focal plane temperature -119.2. 
 
12:20 Start maneuver
12:23 All stars lost.
12:39 All stars, fids, reacquired. In normal point mode.

Status at LOS, 124:12:58, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =    199.319 deg 
       Dec                    =     29.197 deg
       ROLL                   =    208.389 deg
       Format                 =          2
       OBSID                  =       2228 RX J1317.4+2911
       SIM FA                 =       -535
       SIM TSC                =      89719 (ACIS-I)
       HETG                   =        OUT (79.84 deg)
       LETG                   =        OUT (78.34 deg)
        HRC-S HV is ON 
       EPHIN Geom             =       LARG
             A-leak           =     0.4000 mu-a
             B-leak           =     0.0760 mu-a
Ascending through 75602 km. ACIS focal plane temperature -119.5.

NOTES/ISSUES/PROBLEMS
	ACIS probably too warm for valid CTI measurement.
	EPHIN values look erratic in the snapshot.
	ACIS CAP review approved CAP 725, pending verification of
loads, for use of the contingency comm time 126:12:00 to 19:00, which
is no longer needed for OTG software checkout. 

From the 9am status meeting:
	9.1a test products will be out this morning. 
	Anticipate MAY1401 products to be circulated Monday, for a
load review on Tuesday.

Quick look data:
No new quick looks this shift.

-------------------------------------------------------
Dan Schwartz,	MS #3
das@head-cfa.harvard.edu  
phone: (617)495-7232    FAX:   (617)495-7356
cell phone: (617)512-5627   
pager: 877-693-7198 PIN 693-7198
       or e-mail 6937198@archwireless.net
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