To:sot_shift
from: Dan Schwartz
date: 27 Feb 04, 12:00noon EST
Subject: SOT shift report 2004-02-27 L1681
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/web-cxc/htdocs/acis/SOT_reports/Feb_27_2004_L1681.txt.

Shift L1681. 
	Start at 058:13:00  GMT
		 = 08:00am    27 Feb EST
	End	   12:00 noon 27 Feb
   
SOT Lead	DAS
(Times will be given in GMT on day 058.)

PLAN
----
Continue running load FEB2304B. Do obsid 5305, an HRC-S/LETG
observation to monitor the spectral evolution of the isolated neutron
star RXJ0720-3125. This is a DDT TOO.  Then do ACIS-S observations:
obsid 4526 to monitor the orbital period changes of the double
degenerate binary RX J0806.3+1527; obsids 4696 and 4691 to study the nearby,
ultra-low luminosity AGN's NGC 1023 and NGC 205, respectively.
No Comm this shift.

Next Comms:
058:2210 to 0010
059:0250 to 0450
059:1255 to 1355
059:1945 to 2045
060:0150 to 0350
060:1215 to 1315
060:2000 to 2100
061:0345 to 0445
061:1245 to 1445

Orbital events:
 2004:059:05:17:56.829    630       EAPOGEE       ORBIT APOGEE
 2004:060:13:02:31.765    630       EPERIGEE      ORBIT PERIGEE               
 2004:061:20:45:58.915    631       EAPOGEE       ORBIT APOGEE     
 2004:063:04:30:29.823    631       EPERIGEE      ORBIT PERIGEE
 2004:064:12:13:46.664    632       EAPOGEE       ORBIT APOGEE
 2004:065:19:57:42.980    632       EPERIGEE      ORBIT PERIGEE  


EVENTS
------
Status at LOS, 058:11:58, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =    110.083 deg 
       Dec                    =    -31.424 deg
       ROLL                   =    301.650 deg
       Format                 =          1
       OBSID                  =       5305 RXJ0720-3125
       SIM FA                 =       -990
       SIM TSC                =     -99615 (HRC-S)
       DITHER		      =	      ENAB 
       HETG                   =        OUT (79.46 deg)
       LETG                   =         IN ( 4.09 deg)
        HRC-S HV is ON 
       EPHIN Geom             =       SMAL
	     E150	      =	       3.0
	     E300	      =	       0.1
             E1300            =        0.1           LT 10.0 (RADMON
             P4GM             =        0.1           LT 300. Triggers)
             P41GM            =        0.0           LT 8.47
             A-leak           =     1.0200 mu-a
             B-leak           =     1.0200 mu-a
 ACIS focal plane temperature -119.7. 
EPH temp     92.71

NOTES/ISSUES/PROBLEMS
From the 9am status meeting:
Three supports over the past 24 hours.  Caught up on playback from
both tape recorders, and have reverted to normal operations on SSR A. 
The DSS-54 pass was cancelled, for support to the Rosetta launch
attempt. (That launch did not occur, but there was no impact to
Chandra.)  
MAR0104B loads were approved yesterday, will be signed off this morning.
IRU anomaly closeout was approved by the FDB yesterday. 
NGST quarterly ops report is ready. It will be circulated
electronically, on the web and via CDrom. 
ASVT EPS test set power supply still down, being worked with inputs
from Space Park.  

Quick look data:
OBSID   Target           Time                        Comment
-----   ------           --------------              -------
No new quick looks today, still processing the long HETG obsid
4819. Also data was delayed due to the SSR rollover.


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