STEREO Weekly Meeting Minutes for 2007-07-24 (Week 30)


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

* None.


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 29

* The DMZ at APL went down on day 197, which delayed receiving the Ahead data
  from DSN.  These data should now be available.

* DSN station 34 lost command bind with Ahead on day 203 at 18:41.  This
  resulted in not getting the stored command buffer dump for that day.

* The total average daily downlink was 6.3 gigabits from Ahead and 6.9 gigabits
  from Behind.

* A test of disabling GT use was performed on both spacecraft on day 199.  This
  test was to simulate the possibility of offsetting the spacecraft pointing
  beyond the linear range of the GT.  The COR2 telescope pointing is offset
  relative to the other SECCHI telescopes, which leads to excess brightness at
  the edge of the occulter.  Offpointing to correct this would take the GT
  outside of its linear range, and the attitude control system would not be
  able to use the GT data.  The SECCHI team has looked at the results of this
  test.  It appears that the resulting jitter is worse than the EUVI and COR1
  telescope teams would want.

Week 30

* The fourth momentum dump will be performed on the Behind spacecraft tomorrow
  (Jul 25, day 206) around 19:00 UT.  The SECCHI team wants to send commands,
  which will take about 15 minutes, before the momentum dump.

* Autonomy rule 126 will be loaded on Behind on Thursday, day 207.  This will
  be an attended pass.

Week 31

* The Ahead track on Monday, day 211, has been moved from 17:25 to 21:05 UT.

* GT rate usage will be enabled on Ahead on day 213.

Week 32

* The final DSN schedule for week 32 is not available yet because of the
  Phoenix launch.  The MOC is currently working from a draft schedule.  The
  final schedules are expected to appear either today or tomorrow.

Week 33

* The COR2 off-point even on Behind is scheduled for August 14th at 14:50 UT.


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

-------------------------------------------------------------------------------
Scheduled activities for Week 30:

M Jul 23 (204)  JOP 188 continues
T Jul 24 (205)  
W Jul 25 (206)  Behind: Momentum dump, 19:00 UT
T Jul 26 (207)  
F Jul 27 (208)  
S Jul 28 (209)  
S Jul 29 (210)  

Notes:
* JOP 188, Prominence Mass Composition and Variability Study, Jul 1-Aug 5

-------------------------------------------------------------------------------
Scheduled activities for Week 31:

M Jul 30 (211)  JOP 188 continues
T Jul 31 (212)  
W Aug 01 (213)  
T Aug 02 (214)  
F Aug 03 (215)  
S Aug 04 (216)  
S Aug 05 (217)  JOP 188 ends

Notes:
* JOP 188, Prominence Mass Composition and Variability Study, Jul 1-Aug 5

-------------------------------------------------------------------------------
Scheduled activities for Week 32:

M Aug 06 (218)  
T Aug 07 (219)  
W Aug 08 (220)  
T Aug 09 (221)  
F Aug 10 (222)  
S Aug 11 (223)  
S Aug 12 (224)  

-------------------------------------------------------------------------------
Scheduled activities for Week 33:

M Aug 13 (225)  
T Aug 14 (226)  Behind: COR2 off-point calibration maneuver, 14:50 UT
W Aug 15 (227)  
T Aug 16 (228)  
F Aug 17 (229)  
S Aug 18 (230)  
S Aug 19 (231)  

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

Upcoming events:

2007:

* May 7 -Aug 10		Hinode eclipse season
* Jul 1 -Aug 5		JOP 188, Prominence Mass Composition and Variability
* Aug 8-18		JOP 194, Filament/Cavity-CME-ICME IHY-CIP campaign,
			(CIPs 7,21,23,51)
* Aug 19		Ulysses ecliptic plane passage
* Oct 22 - Nov 2	SUMER campaign (JOPs 190,191,192,193)
* Dec 2007-May 2008	Ulysses quadrature