ACE Weekly 12/11/2013 - 12/17/2013

All ACE spacecraft subsystems are performing as expected.

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Orbit/Attitude:

	Type         Attitude
	Date         12/17/2013
	DOY          351 2013
	Thrusters    2R 4R+ 4R-
	Duration     5:34 min
	Start        21:00:26z
	Stop         21:06:00z
	HGAStart     -8.95 deg
	HGAStop      +8.99 deg
	SunStart     14.54 deg
	SunStop      17.06 deg
	SpinStart    4.9762 rpm
	SpinStop     4.9775 rpm
	Nutation      0.19 deg
	Firing       28 pulses
	FuelUsed       0.0940 lbm
	FuelRemain   109.9536 lbm
	FinalSCMass  1344.214 lbm

The next attitude maneuver is scheduled for Monday 12/23/2013.

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OCRs:

None

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Activities:

Data Capture:  100%  DOY 342-349 2013

On 12/12/2013 (DOY 347) a DSN Project Interface Test (PIT) for software
upgrades to DSN's Downlink Telemetry and Tracking (DTT v11.3) was
completed.  No problems were found.  The previous PIT with DSN was
9/25/2012 (DOY 269) with a test of DTT v11.1.


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Anomalies:

DOY 349  12/15/2013  S-ACE-0671  G13-0014  Hard Drive Failure
The MMOC operational system (ops1b) hard drive failed at the end of the
Wind pass on Sunday.  The MMOC transitioned to the other operational
system (ops1p) before the ACE pass started.  ACE Science Center was
notified that data would be received from ops1p.  The System
Administrators restored ops1b hard drive from backup on Monday.
IMPACT:  Manual intervention required.