Shift M19
        Start at 1999:221:18:00:00 GMT
                = 1999 Aug 9 2:00pm EDT
        End                 10:00pm EDT

SOT Lead/FP Sci MJ
Spac/Aspect     MF
FOT/Sci liaison 
HRC             JHC, EJ
ACIS            YB, RB, GC

(Times will be given in GMT on day 221/222. In general
times are rough, not precise.)

Plan
----
Continue LL->OO OBC loads to OBC-B
Continue ACIS Door Open Background Measurements
Prepare for and command ACA repeated full field searches

Events
------
18:30 On-orbit load to OBC-B complete
18:47 resume running SAP 61045 (ACIS background w/ door open)
18:50 sent ACIS stop science command
19:36 start run of CAP 200 to begin ACA full field search
20:30 resume ACIS backround data collection procedure with "B-side" scripts
20:35 OBSID 62709
20:45 start ACIS science run
21:07 attitude update
21:30 pitch to 110
22:26 vacuum monitor pressure 7.8e-6
23:25 execute CAP 206 (HRC MCP HV SCSs)

01:45 send ACIS stop science command
01:50 OBSID 62708
02:00 start ACIS science run


Notes/Issues/Problems
---------------------
During the test of ACA repeated full field searches performed at the
last perigee passage, a possible sensitivity to high energy protons
was observed. In order to better understand the sensitivity of ACA
full field searches to radiation we set up to test this near
apogee. The procedure to set up the planned test is CAP 200.

An ACIS science run continued running under the LL-OO load to OBC-B
while in format 4. When the spacecraft switched over to OBC-B the
OBSID went to 0. Thus, the first part of the ACIS background after the
door opened went from OBSID 62710 to 0.

After the switch to OBC-B we encountered a delay in our ability to run
ACIS procedures as the scripts to run on OBC-B were not
available. Scripts made available by CAP 202.

The PEA software patch has been received at TRW, must undergo
testing. TRW SMF estimates patch available for use in 2 days. 

At ~19:21 GMT the ACA EGSE received several packets with VCDU counts
far out of sequence (~400000).

When the OBSID change was first commanded after switching to OBC-B we
did not see a change in OBSID. The change was commanded to OBC-A
corrected when the command was directed to OBC-B; "A" or "B" is a
script argument. 

One result of the switch to OBC-B is that all of the MCP HV SCSs are
enabled. We submitted CAP 206 to disable SCSs 87, 88, 89, 90, 91, 92,
and 93. This will need to be re-run after the switch to OBC-A.

We need to develop a set of criteria for deciding whether a dump from
the spacecraft is complete enough for us to "accept" the dump and
reset the pointers on the SSR. A possibility is to set a goal number
for completeness combined with a number of attempts at a dump. We have
requested an update to flight note 194, providing updated statistics
on the dumps performed to date.

Flight note 253 provides an estimate for the pressure rise in the OBA
cavity when the ACC is opened. For a rnage of 1e-4 to 1e-3 torr in the
HRMA the pressure in the OBA should go to 1.6e-5 to 9.1e-5 torr. The
flight note recommends that the SOT review these numbers for potential
impact on the FPSIs.