STEREO Weekly Meeting Minutes for 2007-06-12 (Week 24)


ANNOUNCEMENTS
-------------

* Next week's telecon has been moved to Wednesday, June 20th, at 12:30
  P.M. EDT.


INSTRUMENT AND SPACECRAFT STATUS
--------------------------------

* All subsystems on both spacecraft are nominal, except that the Ahead
  spececraft is currently operating on IMU #2.


DISCUSSION AND OPERATIONS CONSTRAINTS
-------------------------------------

Week 23

* Ahead is still operating on IMU #2, and is likely to be doing so for some
  time.

* No ground system anomalies occured for either spacecraft during the week.

* The average daily data downlink was 6.7 gigabits for Ahead, and 6.9 gigabits
  for Behind.

* IMU #1 on Ahead was powered on during the track on day 157 to collect
  diagnostic data.  Four pathlink control resets were encountered during the
  test.

* The battery trickle charge was adjusted on both spacecraft on day 158.

* The SECCHI-Ahead synoptic partition became 100% full during the track on day
  158.  The MOC cleared up space as soon as the data was downlinked, so that
  SECCHI could continue to take data.  About 55 minutes of data was lost.

* SECCHI-Behind experienced a watchdog reset on day 157 during the track, and
  was recovered during the track.  About 5 hours of data was lost.  This is the
  first watchdog reset on Behind--it has happened twice before on Ahead.

* Messenger fly-by of Venus occured June 5 (day 156).  STEREO synoptic data
  collected by all instruments.

Week 24

* Both the Wednesday and Thursday (June 13,14) passes will be attended this
  week because of the large light travel times.  Plans are being considered for
  making the commanding process more efficient.

* New autonomy rules will be loaded on Behind on Thursday (June 14).  These
  rules have already been loaded on Ahead.

* IMPACT will adjust LET settings on Thursday.  PLASTIC also requests realtime
  commanding this week.

Week 25

* The first part of the Minimum Mission Success criteria will be met with 150
  days collecting science data in heliocentric orbit.

Week 26

* Test of new autonomy rule on Ahead on June 27th.

Other

* Remaining weeks still being worked because of upcoming DAWN launch.  Nominal
  DAWN launch date has slipped to July 7th.  Don't have contingency schedules
  yet if launch window is missed.

* Phoenix launch still scheduled for August 3rd, and Selene for mid August.

* The PLASTIC software load is ready to go, and is awaiting compatibility
  testing with IMPACT.  When this is completed, the PLASTIC team wants to do
  the upload on a Tuesday, with the normal Wednesday attended pass as a
  contingency.  The upload would be first done on one spacecraft, with the
  other spacecraft following a week later.

* SWAVES had an issue with the command packet sequence count.  The patch to
  solve this problem will be deployed tomorrow (June 13).

* The issue with truncated IDR files is still being investigated.


COORDINATED OBSERVATIONS
------------------------

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Scheduled activities for Week 24:

M Jun 11 (162)  
T Jun 12 (163)  
W Jun 13 (164)  
T Jun 14 (165)  
F Jun 15 (166)  
S Jun 16 (167)  
S Jun 17 (168)  

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Scheduled activities for Week 25:

M Jun 18 (169)  
T Jun 19 (170)  
W Jun 20 (171)  
T Jun 21 (172)  
F Jun 22 (173)  
S Jun 23 (174)  
S Jun 24 (175)  

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Scheduled activities for Week 26:

M Jun 25 (176)  
T Jun 26 (177)  
W Jun 27 (178)  Test of Macro 145 -- may affect fine pointing
T Jun 28 (179)  
F Jun 29 (180)  
S Jun 30 (181)  
S Jul 01 (182)  

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