ACE Weekly 11/02/2010 - 11/08/2010
All ACE spacecraft subsystems are performing nominally.
========================================================================
Orbit/Attitude:
Type
Attitude
Date
11/03/2010
DOY 307
2010
Thrusters 2R 4R+ 4R-
Duration 6:47 min
Start
14:54:38z
Stop
15:01:25z
HGAStart
3.40deg
HGAStop
7.79deg
SunStart
9.46deg
SunStop
5.81deg
SpinStart 5.0614rpm
SpinStop 5.0622rpm
Nutation
0.03deg
Firing 35
pulses
FuelUsed 0.1178lbs
FuelRemain 133.1184lbs
FinalSCMass 1367.378lbs
The next attitude maneuver is scheduled for Wednesday
11/10/2010.
=======================================================================
OCRs:
None
========================================================================
Activities:
Data Capture: 100% DOY 306-312 2010
NOAA Space Weather Prediction Center does not have a backup
antenna.
NOAA SWPC currently has antenna time with NICT (Japan), DLR
(Germany),
and Wallops (Virginia). This week, NICT will be down from
11/12-11/13
for maintenance. The network connection to the Air Force Satellite
Control Network (AFSCN) was lost on September 1, 2010 with the
closing of the Onizuka Air Force Base. There are plans to add a
network
through Vandenberg Air Force Base, but that has not been
implemented.
Note, the NOAA SWPC operations is separate from the Goddard
flight
operations, but this information is worth noting and therefore
included
in this weekly report.
========================================================================
Anomalies:
DOY 306 11/02/2010 S-ACE-0553 G10-0069
ace_pass.proc did not finish
Nominal end of track notification not received. FOT manually exited
ace_pass procedure and performed necessary clean up activities prior to
configuring system for DOY 307 pass activities.
IMPACT: Manual intervention required. Pass Summary and Clock
Calibration
Report manually generated.
DOY 309 11/05/2010 S-ACE-0554 G10-0070 Telemetry
delayed 60 minutes at BOT
Although MUS reported active binds and JPL stated there were no problems,
telemetry was not reaching the MOC. The FOT manually disconnected
and
re-established an active realtime telemetry bind. MMOC began
receiving telemetry.
IMPACT: Manual intervention required. All data recovered
during subsequent support.
NOTE, WIND anomaly reports will be included when problems with
MMOC
software/equipment would have impacted ACE operations.
DOY 309 11/05/2010 S-WIND-0477 TTC V10.1 SW DCD
PIT test with D54 unsuccessful
Tracking, Telemetry, & Command (TTC) V10.1 SW Data Capture &
Deliver (DCD) Project Interface Test (PIT) with D54 unsuccessful.
MMOCOPS1P (primary) was configured for the RNS from 10/309/1450-1650
(Committed). MMOCOPS1B (backup) was configured for the DCD from
10/309/1450-1650 (Non-committed). Received telemetry on MMOCOPS1P. Able
to bind on MMOCOPS1B but did not received telemetry from the test SLE
telemetry server. Wind was up at the same time as ACE and they also
did not receive telemetry for quite some time. Not sure if it's
related.
Note, both Wind and ACE had the same BOT on DOY 309.
==============================================================
Jacqueline Maldonado Snell
Advanced Composition Explorer Flight Operations Team Manager
Honeywell Technology Solutions Incorporated (HTSI)
Goddard Space Flight Center
Bldg. 14 Rm W10B, Mailstop 428.2
Greenbelt, MD 20771
Phone: (301) 286-7072
Fax: (301) 286-1729
E-mail:
Jacqueline.M.Snell@nasa.gov
**************************************************************************
Andrew J. Davis, Caltech, Mail Code 292-17, Pasadena CA
91125.
Phone: 360-681-3020, 626-429-0844 (cell)
Email: ad@srl.caltech.edu Web:
http://www.srl.caltech.edu/ACE/ASC