To:sot_shift
from: Dan Schwartz
date: 01 Mar 07, 12:00noon EST
Subject: SOT shift report 2007-03-01 L2779
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/web-cxc/htdocs/acis/SOT_reports/Mar_01_2007_L2779.txt.

Shift L2779. 
	Start at 060:13:00  GMT
		 = 08:00am    01 Mar EST
	End	   10:00am    01 Mar
   
SOT Lead	DAS
(Times will be given in GMT on day 060.)

PLAN
----
Continue running load FEB2607C. Continue the ACIS-S/HETG observation
of the accreting young star TW Hya, obsid 7436, to distinguish X-ray
emission from a hot corona vs. an accretion shock, and to probe the
density and structure of the magnetic regions.

Next Comms:
060/1940-2155   2040 2140 DSS-54    MADRID     1540-1640 EST, Thu  1 Mar 
061/0245-0500   0345 0445 DSS-54    MADRID     2245-2345 EST, Thu  1 Mar 
061/1145-1400   1245 1345 DSS-24    GOLDSTONE  0745-0845 EST, Fri  2 Mar 
061/1905-2055   1945 2045 DSS-46    CANBERRA   1445-1545 EST, Fri  2 Mar 

Orbital events:
2007:059:06:06:44.725   1044  EPERIGEE  ORBIT PERIGEE                      
2007:060:13:51:46.338   1045  EAPOGEE   ORBIT APOGEE                    
2007:061:21:34:40.949   1045  EPERIGEE  ORBIT PERIGEE
2007:063:05:19:09.847   1046  EAPOGEE   ORBIT APOGEE 
2007:064:13:02:40.251   1046  EPERIGEE  ORBIT PERIGEE
2007:065:20:46:36.271   1047  EAPOGEE   ORBIT APOGEE    

EVENTS
------
Status at LOS, 060:12:29, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =    165.432 deg 
       Dec                    =    -34.725 deg
       ROLL                   =      4.981 deg
       Format                 =          2
       OBSID                  =       7436 TW Hya
       SIM FA                 =       -467
       SIM TSC                =      75623 (ACIS-S)
       DITHER		      =	      ENAB 
       HETG                   =        IN  ( 5.96 deg)
       LETG                   =        OUT (77.59 deg)
        HRC-I HV is ON 
       EPHIN Geom             =       LARG
	     E150	      =	       1.4
	     E300	      =	       0.0
             E1300            =        0.0           LT 20.0 (RADMON
             P4GM             =        0.3           LT 300. Triggers)
             P41GM            =        0.0           LT 8.47
             A-leak           =     1.0200 mu-a
             B-leak           =     0.0000 mu-a
Ascending through 129951 km. ACIS focal plane temperature -118.6 degC.  
EPH temp:     102.38 degF   EPH 27V: 12.69 

NOTES/ISSUES/PROBLEMS
From the 9am status meeting:
Three supports over the past day. No issues.
MAR0507A products approved yesterday.

Mission planning and constraints working group this morning will
discuss whether the Venus observations next summer are possible, given
the 45.3 deg pitch angle.

At yesterday's monthly ACIS team meeting it was noted that the detector
housing heater has been close to losing control at various times. ACIS
team will correlated with SIM position and pitch angle.

Maintenance will be performed on the OCC Exchange server following
this afternoon's support, starting at 5pm and expected to last less
than 1 hour. 

Quick look data:
OBSID   Target           Time                        Comment
-----   ------           --------------              -------

No New quick looks.



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