Shift M18
        Start at 1999:220:18:00:00 GMT
                = 1999 Aug 8 2:00pm EDT
        End                 10:00pm EDT

SOT Lead/FP Sci MJ
Spac/Aspect     RAC, WAP
FOT/Sci liaison AN
HRC             AR->EJ
ACIS            PPP, PF, ES, MB, and a cast of thousands

(Times will be given in GMT on day 220/221. In general
times are rough, not precise.)

Plan
----
Finish ACIS bake-out and start door open process

Events
------
18:05 ACIS FP at 29.4 C
18:25 ACIS Camera Housing -15.7/-7.5
19:15 ACIS Camera Housing 0.0/5.1
20:00 ACIS Camera Housing 7.5/15.0
20:23 ACIS Camera Housing 15.0/20.0
20:50 ACIS Camera Housing 15/23
20:53 ACIS camera housing heater cycling
21:07 start sending ACIS door mechanism commands (door mech. enabled)
21:12 start 90s heating cycle (pulse 1)
21:28 start 110s heating cycle (pulse 2)
21:30 see door shaft rotation to ~13 and 
      door closed limit switch NOT active
21:50 start 110s heating cycle (pulse 3)
21:53 shaft rotation 19.5
22:15 start 140s heating cycle (pulse 4)
22:17 shaft rotation resumes - goes to ~36
22:38 notice loss of track on fid-light in window 6
22:43 start 200s heating cycle (pulse 5)
22:45 shaft rotation resumes
22:46 ACIS Door Open !!!!!
23:00 noticed ACA resumed track on a fid-light in window 6
23:09 Disable door mechanism
23:11 ACIS camera housing heater off
23:16 ACIS FP temp 31.6 C
23:40 set ACIS FP control to +20 C

00:15 set ACIS FP control to +10 C
01:05 set ACIS FP control to +0 C


Notes/Issues/Problems
---------------------
Even though the HRC MCP HV is planned to be on before the next perigee
passage we will continue to include safing commands in the ATS. ACIS
wishes to be taking data during entry into the next radiation zone;
there is a question as to whether the safing ATS should contain ACIS
commands and if so when the execution time should be. After discussion
with ACIS science it has been decided to include the "dead-man" cutoff
at 40000km, the ACIS team plans to safe the instrument manually before
this point is reached.

Bill Podgorski generated a plot showing the response of the vacuum
monitor pressure and camera housing temperature at the start of ACIS
bake-out. Just as the heater was turned on there was a rise in the
pressure indication, from 8.3e-6 to 4.5e-5 torr in 20 minutes. The
pressure then abruptly dropped to 1.5e-5 and has been gradually
decreasing since.

ACIS Door opening went nominally.

Rob Cameron reviewed the ACA fid-light data and discovered that the
fid-light on which track was lost had been occulted by the the ACIS
camera housing door mechanism when it was partially open between heat
pulses 4 and 5. The ACA provided an independent verification of the
ACIS door motion.

The process of having a GRETA workstation moved to the SOT area has
been kicked off (ConfigRequest OCCcm02687). Expect to see the move in
the next day. 

Dan Michaels returned Rob Cameron's page concerning the status of the
PEA software patch. Ball has built a patch and turned it over for test
(no work on the weekend). Since the SMF goes to a "days-only" stance
on Tuesday (Aug 10) it is critical for Ball to turn the patch over to
the SMF ASAP.