To:sot_shift
from: Dan Schwartz
date: 29 Apr 04, 12:00noon EDT
Subject: SOT shift report 2004-04-29 L1743
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/web-cxc/htdocs/acis/SOT_reports/Apr_29_2004_L1743.txt.

Shift L1743. 
	Start at 120:12:00  GMT
		 = 08:00am    29 Apr EDT
	End	   11:00am    29 Apr
   
SOT Lead	DAS
(Times will be given in GMT on day 120.)

PLAN
----
Continue running load APR2604A.  Continue the 1 Ms ACIS-S
observation of the core collapse SNR Cas A, obsid 4634, for the
remainder of this orbit.

Next Comms:
120:1345 to 1445
120:2330 to 0030
121:1015 to 1115
121:1920 to 2120
122:0250 to 0450
122:1140 to 1240
122:2100 to 2200
123:0345 to 0445
123:1200 to 1300
123:2045 to 2145

Orbital events:
2004:120:00:52:19.115    653   ORBIT APOGEE 
2004:121:08:36:11.722    653   ORBIT PERIGEE
2004:122:16:19:54.401    654   ORBIT APOGEE
2004:124:00:03:14.625    654   ORBIT APOGEE
2004:126:15:30:29.911    655   ORBIT PERIGEE
2004:127:23:13:35.015    656   ORBIT APOGEE
2004:129:06:57:51.051    656   ORBIT PERIGEE

EVENTS
------
Status at AOS, 120:13:46, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =    350.896 deg 
       Dec                    =     58.821 deg
       ROLL                   =     59.070 deg
       Format                 =          2
       OBSID                  =       4634 Cas A
       SIM FA                 =       -467
       SIM TSC                =      75624 (ACIS-S)
       DITHER		      =	      ENAB 
       HETG                   =        OUT (79.46 deg)
       LETG                   =        OUT (77.59 deg)
        HRC-S HV is ON 
       EPHIN Geom             =       LARG
	     E150	      =	       0.5
	     E300	      =	       0.0
             E1300            =        0.0           LT 10.0 (RADMON
             P4GM             =        0.0           LT 300. Triggers)
             P41GM            =        0.0           LT 8.47
             A-leak           =     1.0200 mu-a
             B-leak           =     0.6240 mu-a
Descending through 112169 km. ACIS focal plane temperature -119.9 C.. 
EPH temp     86.25F

14:44  LOS Status is essentially unchanged.
Descending through 109549 km. ACIS focal plane temperature -119.9 C.. 
EPH temp     86.25F


NOTES/ISSUES/PROBLEMS
From the 9am status meeting:
     Two supports in the past day. No issues. On-board loads good
until 122:22:30.
      MAY0304A loads were reviewed, revised products out yesterday
afternoon, expect email review and sign-off today.
      Mike Juda evaluated the elongation of LMC X-3 in obsid 4575, and 
concluded that it was due to dithering over an HRC gap. In particular,
that the gap was just at the edge of the dither pattern, so that a
relatively large amount of time was spent at that location. This is
therefore an understood instrumental effect and not a data or
processing issue.

Quick look data:
OBSID   Target           Time                        Comment
-----   ------           --------------              -------
5137  E0102-72[I3,-120,-7,   119:00:46   ACIS-I NONE   Calib. obs., OK
5138  E0102-72[I3,-120,-4,   119:03:07   ACIS-I NONE   Calib. obs., OK 

-------------------------------------------------------
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
-------------------------------------------------------