STEREO Weekly Meeting Minutes for 2009-02-17 (Week 08)


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 07

* Telemetry lock was intermittent for both Ahead using station 54 on day
  45 resulting in a small loss of SECCHI data for days 44 and 45.

* Behind had some small data losses for all instruments on day 43 caused by
  a combination of track time shift and some intermittent outages at
  station 24.

* The average daily downlink was 6.4 gigabits on Ahead, and 7.0 gigabits on
  Behind.

Week 08

* Behind performed a SECCHI step cal on day 48 to get better background values
  for COR-1

* PLASTIC will adjust Ahead high voltages on day 48

Week 09

* No significant activities planned.

Week 10

* No significant activities planned.

Other

* The scripts for the SECCHI HI team request to roll each spacecraft by 180 degrees 
  for 6 hours to examine the L4 and L5 points as the spacecraft approaches them is
  about to be tested on the simulator.


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

-------------------------------------------------------------------------------
Scheduled activities for Week 08:

M Feb 16 (047)  
T Feb 17 (048)  Behind: SECCHI stepped calibration roll, 13:00
		DAWN - Mars fly-by
W Feb 18 (049) Ahead:  PLASTIC hi voltage adjustment 
T Feb 19 (050)  
F Feb 20 (051)  
S Feb 21 (052)  
S Feb 22 (053)  

-------------------------------------------------------------------------------
Scheduled activities for Week 09:

M Feb 23 (054)  
T Feb 24 (055)  
W Feb 25 (056)  
T Feb 26 (057)  
F Feb 27 (058)  
S Feb 28 (059)  
S Mar 01 (060)  

-------------------------------------------------------------------------------
Scheduled activities for Week 10:

M Mar 02 (061)  
T Mar 03 (062)  
W Mar 04 (063)  
T Mar 05 (064)  
F Mar 06 (065)  
S Mar 07 (066)  
S Mar 08 (067)  

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

Upcoming events:

2009:

ICAL-001: Jan 26-30, Mar 2-6, Apr 6-10, May 11-22, Jun 15-19, Jul 13-17

SECCHI Stepped calibration rolls
	Ahead:	Mar 10, Jun  9, Sep  2, Nov 24
	Behind:	Apr 7, Jun 16, Sep 22, Dec 22

* Mar 9 (TBC)		ICAL14, Herschel sounding rocket launch
	http://sohowww.nascom.nasa.gov/soc/JOPs/ical014-draft.pdf
* Mar 27, Apr 2		JOP 80, EIT shutterless
* Apr 15-29		SUMER campaign (TBC), JOPS 210,211,212,214
* Apr 16		SUMI sounding rocket launch
	http://adsabs.harvard.edu/abs/2008AGUSMSP51B..01A
* May 11		Both: Begin 6 hour daily DSN tracks
* May 18		Ahead:  Switch downlink rate to 360 kbps
* Jun 1-Jul 10		Sunrise 5-day balloon flight
	http://star.mpae.gwdg.de/Sunrise/project/publicat/SPIE_2004.pdf
* Jun 8			Behind: Switch downlink rate to 360 kbps
* Jul 1			Both: HGA calibration
* Jul 22		Total solar eclipse
	http://eclipse.gsfc.nasa.gov/SEmono/TSE2009/TSE2009.html
* Aug 3			Both: Begin 7 hour daily DSN tracks
* Aug 10		Ahead:  Switch downlink rate to 240 kbps
* Aug 31		Behind: Switch downlink rate to 240 kbps
* Sep 10		Ahead at L4 Lagrange point
* Sep 29		Messenger - Mercury fly-by
* Oct 26		Behind at L5 Lagrange point
* Nov 1-Dec 15		SUMER campaign (TBC)
* Dec 7			Behind: Begin 8 hour daily DSN tracks
* Dec 14		Behind: Switch downlink rate to 160 kbps

2010:

SECCHI Stepped calibration rolls
	Ahead:	Feb 23, May 18, Aug 10, Nov 2
	Behind:	Apr  6, Jul 13, Oct 12

* Jan 6			Both: HGA calibration
* Apr 19		Ahead: Begin 8 hour daily DSN tracks
* Apr 26		Ahead: Switch downlink rate to 160 kbps
* Jul 11		Total solar eclipse
	http://eclipse.gsfc.nasa.gov/SEmono/TSE2010/TSE2010.html
* Jul 14		Both: HGA calibration
* Nov 15		Behind: Switch downlink rate to 120 kbps

2011:

* Jan 12		Both: HGA calibration
* Mar 18		Messenger - Mercury orbital insertion
* Apr 11		Ahead:  Switch downlink rate to 120 kbps
* Jul 13		Both: HGA calibration
* Aug			DAWN - Vesta arrival
* Sep 19		Behind: Switch downlink rate to 96 kbps
* Sep 26		Ahead:  Switch downlink rate to 96 kbps

2012:

* Jan 11		Both: HGA calibration
* May			DAWN - Vesta departure
* Jul 11		Both: HGA calibration
* Aug			Both: Switch downlink rate to 30 kbps

2013:

2014:

2015:

* Feb			DAWN - Ceres arrival
* Jan 10 - Apr 12	Behind: Spacecraft behind Sun
* Feb 17 - Aug 2	Ahead:  Spacecraft behind Sun
* Jul 23 - Nov 10	Behind: Spacecraft behind Sun
* Jul			DAWN - End of nominal mission