ACE Weekly 08/20/2014 - 08/26/2014

All ACE spacecraft subsystems are performing as expected.

========================================================================
Orbit/Attitude:

	Type          Attitude
	Date         08/26/2014
	DOY           238 2014
	Thrusters     2R 4R+ 4R-
	Duration       8:53 min
	Start         14:08:51z
	Stop          14:17:44z
	ra,decStart  137.46,2.87
	ra,decStop   144.66,0.14
	ra,decExpect 145.62,-0.07
	Deviation      0.98 deg (-11% short)
	HGAStart     -10.42 deg
	HGAStop      +10.26 deg
	SunStart      19.05 deg
	SunStop       14.59 deg
	SpinStart    4.9924 rpm
	SpinStop     4.9934 rpm
	Nutation       0.13 deg
	Firing        45 pulses
	FuelUsed       0.1430 lbm
	FuelRemain   104.6764 lbm
	FinalSCMass  1338.936 lbm

The next attitude maneuver is scheduled for Tuesday 09/02/2014.
Station-keeping maneuver #71 is scheduled for Tuesday 9/9/2014.

The past 3 attitude maneuvers have been getting closer to the expected
target.
	08/05/2014	-16%	DOY 217
	08/12/2014	-14%	DOY 224
	08/19/2014	-14%	DOY 231
	08/26/2014	-11%	DOY 238

========================================================================
OCRs:

None

========================================================================
Activities:

Data Capture:  100%  DOY 229-236 2014

========================================================================
Anomalies:

DOY 230  08/18/2014 S-ACE-0684  G14-0011  DSN Earth Receive Time
Additional instances of DSN's Earth Receive Time being behind by 1
second continues.  DSN believes the problem to be a synchronization
problem between the TCT (Time Code Translator), DCC (Downlink Channel
Controller), and RRT (Receiver, Ranging, and Telemetry).  DSN has
assigned Anomaly Number 118875 to this problem.  DSN has linked this
problem to one found with Voyager (DR#N109529).
IMPACT:  Since the ERT deviation is short (~3 minutes), it has
negligible impact on the clock calibration report sent to ASC and NOAA
SWPC.

DOY  Date       Station  ERT behind duration               DSN DR#
197  07/14/2014  DSS-65  -1 second  15:30:44 to 15:38:16z 
201  07/20/2014  DSS-15  -1 second  16:11:48 to 16:14:45z  N109669
207  07/26/2014  DSS-24  -1 second  14:45:48 to 14:48:30z  N109670
224  08/12/2014  DSS-24  -1 second  18:51:18 to 18:55:17z  N109699
230  08/18/2014  DSS-24  -1 second  15:55:42 to 15:58:35z  N109705


DOY 233  08/21/2014 S-ACE-0686  G14-0013  DSN DSS-15 RR5 Reset
Receiver, Ranging, and Telemetry Processor 2 was inadvertently reset at
the DSN ground station.
IMPACT:  Minimal.  6 minute telemetry outage (1525z-1531z) including
data to NOAA SWPC.  Playback data was redumped at the end of the pass.