SOT Shift Report 2006-03-23 N2436

Duration:	23 Mar 2006 20:00 EST - 23 Mar 2006 23:30 EST
		24 Mar 2006 01:00 GMT - 24 Mar 2006 04:30 GMT

SOT/ACA:            Tom Aldcroft
FOT/PCAD:           Eric Martin

========================================

Plan
----
Venus Pathfinder observations: Acquire stars using ACA hardware 
commands (both in load initially and by realtime command) to
access acquisition/tracking success of stars in the presence 
of Venus.

Summary
-------
The test showed the unexpected result that some stars in the "good half"
of the CCD were also subject to problems if they were near Z_angle=0 (i.e.
close to the same column as Venus).  

We plan to have a discussion on 1159# on Friday at 10am to make
a final decision on how to plan the science Venus observations.

A log of the realtime activities and images relevant to the 10am
discussion can be found at:

http://jeeves.cfa.harvard.edu/Murk/Chandra/VenusPathfinder

-Tom