ACE Weekly 07/28/2010 - 08/03/2010

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

	Type        Attitude       
	Date        07/30/2010
	DOY         211 2010
	Thrusters   2R 4R+ 4R-
	Duration    12:35 min
	Start       19:54:01z
	Stop        20:06:36z
	HGAStart    -5.77deg
	HGAStop     +7.85deg
	SunStart     6.86deg
	SunStop     16.82deg
	SpinStart   5.0644rpm
	SpinStop    5.0678rpm
	Nutation     0.07deg
	Firing      64 pulses
	FuelUsed      0.2039lbs
	FuelRemain  134.7828lbs
	FinalSCMass 1369.043lbs

The next attitude maneuver and station-keeping maneuver #55 are
scheduled for Tuesday 08/17/2010.

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OCRs:

None

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Activities:

Data Capture:  100%  DOY 206-213 2010

The longest streak of complete playback data capture for the ACE Mission
was broken on Monday August 2 (DOY 214 2010).
	Previous streak DOY 273 2008 -> DOY 148 2009 (242 days)
	Current streak  DOY 337 2009 -> DOY 214 2010 (243 days &
counting)
The perfect data capture reflects the fact that no passes were
completely lost due to problems with either DSN or the MMOC.  The
procedures for automated SSR redumps had been implemented in 2003.

The ULEIS shutter closed to 25% Tuesday 08/03/2010 (DOY 215) at around
15:00z due to recent solar activity.  This is expected behavior.  No
other automatic reconfigurations have yet occurred due to the solar
activity (e.g. CRIS Image Intensifier powered off).  Further information
and exact times will be available after Wednesday's SSR playback has
been completed.

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Anomalies:

DOY 212  07/31/2010  S-ACE-0519  G10-0037  JPL SLE TLM Provider
JPL's SLE Telemetry Provider had a communication error when the MMOC
MUS/SLE software tried to connect at BOT-20 minutes.  The MMOC MUS/SLE
software attempted to reconnect every 60 seconds.  At BOT+24 minutes,
the JPL Data Control Manager restarted the ACE SLE process on the SLE
Provider.  The MMOC MUS/SLE software was then able to successfully bind
and the MMOC started receiving telemetry.  The pass activities were
started without further problems.  DR#N106466
IMPACT:  Activities delayed 25 minutes.

DOY 214  08/02/2010  S-ACE-0520  G10-0038 ITOS tm_controller
ITOS was unable to process telemetry due to a "timeout reading from
tm_controller".  ITOS was restarted before beginning of track.  This
problem occurs approximately once every 2 weeks.  DR CDSID#00027515 has
been submitted and the ITOS developers expect this to be fixed in the
next release of ITOS.
IMPACT:  Manual intervention required.  No delay in activities.