To:sot_shift
from: Dan Schwartz
date: 23 Jan 07, 12:00noon EST
Subject: SOT shift report 2007-12-23 L2742
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/web-cxc/htdocs/acis/SOT_reports/Jan_23_2007_L2742.txt.

Shift L2742. 
	Start at 023:13:00  GMT
		 = 08:00am    23 Jan EST
	End	   10:00am    23 Jan
   
SOT Lead	DAS
(Times will be given in GMT on day 023.)

PLAN
----
Continue running load JAN2207A. Doing obsid 6408, an ACIS-I
observation of NGC 1893 to study the initial mass function of this
star forming region in the outer part of our Galaxy.

Next Comms:
023:0040 to 0140
024:1130 to 1230
024:2235 to 2335
025:0345 to 0445
025:1110 to 1210

Orbital events:
2007:023:13:21:43.693   1031  EAPOGEE   ORBIT APOGEE
2007:024:21:05:43.196   1031  EPERIGEE  ORBIT PERIGEE
2007:026:04:49:36.951   1032  EAPOGEE   ORBIT APOGEE
2007:027:12:33:41.102   1032  EPERIGEE  ORBIT PERIGEE
2007:028:20:17:15.627   1033  EAPOGEE   ORBIT APOGEE 
2007:030:04:00:49.294   1033  EPERIGEE  ORBIT PERIGEE

EVENTS
------
Status at LOS, 023:13:57, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =     80.693 deg 
       Dec                    =     33.487 deg
       ROLL                   =    261.912 deg
       Format                 =          2
       OBSID                  =       6408 NGC 1893
       SIM FA                 =       -535
       SIM TSC                =      92903 (ACIS-I)
       DITHER		      =	      ENAB 
       HETG                   =        OUT (79.09 deg)
       LETG                   =        OUT (77.59 deg)
        HRC-I HV is ON 
       EPHIN Geom             =       SMAL
	     E150	      =	      50.3
	     E300	      =	       5.6
             E1300            =        5.7           LT 20.0 (RADMON
             P4GM             =        0.0           LT 300. Triggers)
             P41GM            =        0.0           LT 8.47
             A-leak           =     1.0200 mu-a
             B-leak           =     0.0000 mu-a
Descending through 129482 km. ACIS focal plane temperature -118.4 degC.  
EPH temp:     102.38 degF   EPH 27V: 12.69 

NOTES/ISSUES/PROBLEMS
From the 9am status meeting:
Three supports over the past day. DSS-54 had an 8 min delay due to
ephemeris issues, but no impact on the support. One stored command
segment was uplinked, on-board loads are good until 027:14:10.

JAN2907A products expected out today for a load review tomorrow.

One limit violation in the past day is expected to be a double bit
error, is under investigation.

Quick look data:
OBSID   Target           Time                        Comment
-----   ------           --------------              -------
6408	NGC 1893	 023:00:38  ACIS-I	     Looks ok. 


-------------------------------------------------------
Dan Schwartz,	MS #3
das@head-cfa.harvard.edu  
phone: (617)495-7232   
cell phone: (617)512-5627   
pager: email to 6175125627@vtext.com
-------------------------------------------------------