Aug_18_1999_M28.txt Shift M28 
        Start at 1999:230:18:00 GMT = 1999 Aug 18 3:30pm EDT
        End                           1999 Aug 18 10:00pm EDT

See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_18_1999_M28.txt.
   
SOT Lead	Ed Kellogg
SOT SC/ACA	Tom Aldcroft
FOT-SI		
HRC-SI		Jerry Austin
ACIS-SI		Royce Buehler

(Times will be given in GMT on day 230. not precise.)

EVENTS							PLAN	DONE	OBSID
--------------						----	----	-----
Start shift (3:30pm EDT 18 Aug 1999)			1800	1930

End shift (2pm EDT 12 Aug)	day 228			1800	

NOTES/ISSUES/PROBLEMS 
--------------------- 

The FOT continued to plan and carry out safe mode recovery. As of
231:0129, we have swapped from CTU-B to A and RCTU-B to A, IOE-B to
A. We have turned on the A-side PCAD equipment - IRU-A, SPE-A, FSS-A,
VDE-A and ADE-A. We are about to go from CPE to OBC-A control.

Plan: After recovery from safe mode, we will do HRC-I internal
calibration and we'll turn on ACIS to get it operating a few thousand
sec before it's needed for Cas A. There is already a CAP for moving
the SIM back into position. That will be executed after we recover
from safe mode.

We will go to RA = 12.5 deg, Dec = +73.0 deg, Roll = 136.4 deg, as
chosen by Tom Aldcroft. This is ~0.8 deg from RA = 11.679, Dec =
+72.217 (note update of this number from previous shift report), which
is on the plane perpendicular to the sun line and on the great circle
between the Sun and Cas A. The slight difference is to assure that we
get a good selection of guide stars. Then we will start the new SCS
load, doing a small maneuver to Cas A for that observation.

FOT and CXC mission planning are informed of the desired pointing locations.