STEREO Weekly Meeting Minutes for 2008-09-30 (Week 40)


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

* None.


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

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


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

Week 39

* On day 268 (Sep 24), the Ahead track on station 25 was delayed because of
  transmitter calibration issues.

* The average daily downlink was 7.3 gigabits on Ahead, and 6.9 gigabits on
  Behind.

* A return-to-service track on Behind, and a PIT test, was carried out on
  day 266 (Sep 22) on station 24.  No SSR playback was performed during this
  track.  In spite of some weather issues, the track was carried out
  successfully.

* The SECCHI synoptic partition filled up on Sept 23.  This was because the
  planning was done based on version 2 of the weekly schedule which showed an
  SSR playback during the return-to-service track.  This SSR dump activity was
  removed in version 3 of the weekly schedule when the PIT test was added.  The
  SECCHI team requests that they be notified of such last-minute changes.

* The 11th momentum dump on Behind was carried out on day 267 (Sep 23) at
  17:00 UT.

Week 40

* The SECCHI stepped calibration roll on Ahead occured this morning (Sep 30) at
  06:55 UT.  All indications are that the roll was successful.

* IMPACT will be performing real-time commanding on Wednesday, day 275 (Oct 1),
  starting at 11:00, and on Friday, day 277 (Oct 3), starting at 16:00.

Week 41

* There will be a MESSENGER fly-by of Mercury on Monday, October 6.

* IMPACT is planning to perform SEP commanding on Behind on Monday.  However,
  since this corresponds with the MESSENGER fly-by, the IMPACT team is looking
  into rescheduling this activity.

* The intercalibration program ICAL-001 is scheduled for Oct 9, starting at
  13:00 UT.  SECCHI participates with their regular synoptic program.

Week 42

* Ahead will switch to 480 kbps on Oct 13.

* An EIT shutterless campaign will occur on Oct 16, and Oct 28.  It's not clear
  whether SECCHI data would be of use for this campaign.


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

-------------------------------------------------------------------------------
Scheduled activities for Week 40:

M Sep 29 (273)  
T Sep 30 (274)  Ahead: SECCHI stepped calibration roll, 06:55 UT
W Oct 01 (275)  
T Oct 02 (276)  
F Oct 03 (277)  
S Oct 04 (278)  
S Oct 05 (279)  

Notes:

* Sep 20-Oct4	SUMER Mini-campaign

-------------------------------------------------------------------------------
Scheduled activities for Week 41:

M Oct 06 (280)  Messenger - Mercury fly-by
T Oct 07 (281)  
W Oct 08 (282)  
T Oct 09 (283)  ICAL 1, 13:00 UT
F Oct 10 (284)  
S Oct 11 (285)  
S Oct 12 (286)  

-------------------------------------------------------------------------------
Scheduled activities for Week 42:

M Oct 13 (287)  Ahead:  Switch downlink rate to 480 kbps
T Oct 14 (288)  
W Oct 15 (289)  
T Oct 16 (290)  JOP 80, EIT shutterless
F Oct 17 (291)  
S Oct 18 (292)  
S Oct 19 (293)  

-------------------------------------------------------------------------------

Upcoming events:

2008:

SECCHI Stepped calibration rolls
	Ahead:	Dec 16
	Behind:	Dec 2

ICAL-001: Nov 3-7, Dec 1-5

* Oct 16,28		JOP 80, EIT shutterless
* Nov 1-Dec 15		SUMER campaign (may be cancelled)

2009:

ICAL-001: Jan 5-9, Jan 26-30, Mar 2-6

SECCHI Stepped calibration rolls
	Ahead:	Mar 10, Jun  9, Sep  2, Nov 24
	Behind:	Mar 10, Jun 16, Sep 22, Dec 22

* Jan 15,22		JOP 80, EIT shutterless
* May 18		Ahead:  Switch downlink rate to 360 kbps
* Jun 8			Behind: Switch downlink rate to 360 kbps
* Aug 4			Both: Increase track duration from 4 to 5 hours
* Aug 10		Ahead:  Switch downlink rate to 160 kbps
* Aug 31		Behind: Switch downlink rate to 160 kbps
* Sep 10		Ahead at L4 Lagrange point
* Sep 29		Messenger - Mercury fly-by
* Oct 25		Behind at L5 Lagrange point