ACE Weekly 11/02/2010 - 11/08/2010

 

 

All ACE spacecraft subsystems are performing nominally.

 

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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.

 

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OCRs:

 

None

 

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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.

 

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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