Shift M20
        Start at 1999:222:18:00:00 GMT
                = 1999 Aug 10 2:00pm EDT
        End                 10:00pm EDT

SOT Lead/FP Sci MJ
Spac/Aspect     MF
FOT/Sci liaison AN
HRC             JHC, EJ
ACIS            MB, FB, PGF

(Times will be given in GMT on day 222/223. In general
times are rough, not precise.)

Plan
----
Perform ACIS unfiltered background measurement (SAP 61084)
Resume ACIS background measurement (SAP 61045)
Run SAP 5A017 - Solar Array Mismatch

Events
------
18:15 OBSID 62705
18:32 start ACIS science run
19:00 vacuum monitor pressure 7.6e-6
20:30 send ACIS stop science
20:32 resume SAP 61045 - ACIS Door Open Background Measurements
20:35 OBSID 62704
20:40 start ACIS science run
21:00 run SAP 5A017 - Solar Array Mismatch
23:40 vacuum monitor off
23:56 HRC portion of SCS 129 (rad zone entry) executed

01:47 send ACIS stop science command
01:50 ACIS power down video boards


Notes/Issues/Problems
---------------------
TST lead requested an estimate of what day the first grating
observations would be performed, in order to guarantee engineering
support for launch lock release in initial insertion. In current plan
the first HETG observation is no earlier than 10 days after sun-shade
door opening. LETG first use is no earlier than 17 days after
sun-shade door opening. HRC MCP HV activities may affect these times.

The ACIS team made a decision that the focal plane temperature should
be raised to -60C prior to aft contamination cover (ACC) opening. This
has a significant impact on the planned schedule - the ACC opening
must be delayed to the second opportunity at day 223 ~14:30. The time
window of the original opportunity (day 223 10:30) will be used to
command the ACIS focal plane to -50C and monitor the temperature.

Prior to ACC opening there is a step in the procedure to obtain SOT 
concurrence that the pressure in the telescope is low enough. This was 
originally included to avoid contaminating the HRMA due to OBA out-gassing. 
The SOT lead should be prepared with a response (presumably a GO for ACC 
open).

ACIS collected data down to below 40000 km.