ACE Weekly 01/07/2009 - 01/13/2009

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

	Type        Attitude
	Date        01/09/2009
	DOY         009 2009
	Thrusters   2R 4R+ 4R-
	Duration    14:43 min
	Start       22:22:31z
	Stop        22:37:14z
	HGAStart    -6.63deg
	HGAStop     +7.63deg
	SunStart     6.64deg
	SunStop     14.45deg
	SpinStart   4.9982rpm
	SpinStop    5.0023rpm
	Nutation     0.10deg
	Firing      74 pulses
	FuelUsed      0.2403lbs
	FuelRemain  145.2760lbs
	FinalSCMass 1379.536lbs

The next attitude maneuver is scheduled for Wednesday 01/21/2009.

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OCRs:

None

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Activities:

Data Capture:  100%  DOY 004-011 2009

There is a higher than normal risk of data loss from October 2008 through
February 2009.  If there are problems with the passes, it may not be
possible to acquire additional DSN time.  This higher-risk period has been
occurring every winter for the past couple of years.  For more information
refer to 10/14/2008 weekly.

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Anomalies:

DOY 012  01/12/2009  S-ACE-0408  G09-0005  AC1SLE1 Reboot
AC1SLE1 keyboard, mouse and monitor were not responsive.  The workstation
was still running and could be remotely logged into; SLE was working
successfully over the weekend.  SysAdmins rebooted the computer before
Monday's pass and no further problems were encountered.
IMPACT:  Minimal.