STEREO Weekly Meeting Minutes for 2007-04-24 (Week 17)


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

* Unattended track operations start April 30th.  Concept of Operations document
  has been sent out, and is also available on Stereo Data Server under
  teams/moc.

* Operations schedule on SDS under teams/moc has been updated to include HGA
  calibrations, etc.

* MOPs considering changing description of opening instrument RT commanding,
  and asks if any instrument team has software which depends on the exact
  wording of this item?


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

* All subsystems on both spacecraft are nominal.  The Ahead spececraft is
  currently operating on IMU #2.


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

Week 16

* Station 15 had a transmitter failure on day 108 during the Ahead pass.
  Switched to another antenna, and continued with the pass.  Dropped about 2
  minutes worth of playback data.

* Day 111 the STEREO MOC was evacuated because of a potential problem with the
  60 ft antenna near the building.  The Ahead and Behind passes on day 112 were
  taken remotely in the backup MOC without any problems.

* Ahead is still on backup IMU.

* Average daily date rate over the week was 7.4 Gbits on Ahead and 8.9 Gbits on
  Behind.

* SECCHI GT offpoints on both spacecraft on day 109.

* SECCHI calibration roll on Behind on day 107

* Tested backup IMU on Behind on day 109.

Week 17

* Quite a few additional tracks: 4 on Ahead and 6 on Behind

* Ephemeris update on Behind on Sunday to Monday rollover.

* SECCHI mechanism spin test on Wednesday, Ahead at 20:00 UT and Behind at
  14:00 UT.  Test will take about 15 minutes and will involve the polarizers,
  quadrant selectors, and shutters.

Week 18

* Start unattended tracks on April 30.  Attended track will be on Wednesday.

* Early Friday, start of SECCHI campaign.  Extra 3 hour tracks for SECCHI data
  only about 12 hours after regular track.

Other

* DSN schedules for weeks 19,20,21,22 are available.  Attended tracks on
  Wednesday each week.  Week 22 not completely settled out because of upcoming
  DAWN launch.

* SECCHI campaign ends day 137.


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

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Scheduled activities for Week 17:

M Apr 23 (113)  
T Apr 24 (114)  
W Apr 25 (115)  
T Apr 26 (116)  
F Apr 27 (117)  
S Apr 28 (118)  
S Apr 29 (119)  

Notes:
* SUMER/Hinode campaign, Mar 13-Apr 30

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Scheduled activities for Week 18:

M Apr 30 (120)  Begin unattended tracks
T May 01 (121)  
W May 02 (122)  
T May 03 (123)  
F May 04 (124)  Start of SECCHI campaign
S May 05 (125)  
S May 06 (126)  

Notes:
* SUMER/Hinode campaign, Mar 13-Apr 30

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Scheduled activities for Week 19:

M May 07 (127)  Continuing SECCHI campaign
T May 08 (128)  
W May 09 (129)  
T May 10 (130)  
F May 11 (131)  
S May 12 (132)  
S May 13 (133)  

Notes:
* EIT shutterless campaign May 9, 16:50-00:00 UT; run time 19:00-21:40 UT 
* Ulysses quadrature/MERLIN observations, May 7-13

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Scheduled activities for Week 20:

M May 14 (134)  
T May 15 (135)  
W May 16 (136)  
T May 17 (137)  Last day of SECCHI campaign
F May 18 (138)  
S May 19 (139)  
S May 20 (140)  

Notes:
* EIT shutterless campaign May 15, 14:10-23:45 UT; run time 19:00-21:40 UT
* Ulysses quadrature with SOHO, Hinode, May 14-20

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