ACE Weekly 12/12/2007 - 12/18/2007

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

	Type        Attitude
	Date        12/18/2007
	DOY         352 2007
	Thrusters   2R 4R+ 4R-
	Duration    14:05 min
	Start       20:35:29z
	Stop        20:49:34z
	HGAStart    -6.79deg
	HGAStop     +7.44deg
	SunStart    14.15deg
	SunStop      5.23deg
	Nutation     0.16deg
	Firing      72 pulses
	FuelUsed      0.2347lbs
	FuelRemain  152.9164lbs
	FinalSCMass 1387.176lbs

The next attitude maneuver is scheduled for Friday, 12/28/2007.

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OCRs:

None

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Activities:

34m HEF S-Band Transmitter
DSN has requested additional ACE test passes to verify fixes implemented
with the new S-Band 250W transmitters at DSS-45 and DSS-65.  The following
tests have been scheduled.

	Date       DOY  Station   Test
	Fri 12/28  362  DSS-45    S-Band XMTR, SLE and range data


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Anomalies:

DOY 347  12/13/2007  S-ACE-0252  G07-0105  DSS-46 Antenna Pointing
DSS-46 had problems with their Metric Pointing Assembly.  The problems were
resolved after 4 resets.  DR#C106043
IMPACT:  Activities delayed 20 minutes.

DOY 348  12/14/2007  S-ACE-0253  G07-0106  DSS-46 SLE - CMDs Not Transmitted
ACE MOC had a successful bind with the station.  The station's SLE indicated
commands received but not processed.  Station reloaded the desktop software
and the commands via SLE were successful.  DR#C106045
IMPACT:  Activities delayed 15 minutes.

DOY 351  12/17/2007  S-ACE-0254  G07-0107  MOC Archive Not Cleared
The ACE MOC archive directory was not cleared after the files had been
tarred to tape.
IMPACT:  Minimal.  Automated archiving and data capture statistics required
manual intervention.

DOY 351  12/17/2007  S-ACE-0255  G07-0108  MOC DSN Monitor Stopped
The ACE MOC DSN Monitor (aka SIMMS) stopped recording DSN 0158 data from DOY
347-351.
IMPACT:  DSN 0158 is useful for troubleshooting DSN problems and trending
the RF Link.  The data is not used by automation and had no impact on the
automated pass.