ACE Weekly 04/29/2009 - 05/05/2009

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

	Type        Attitude
	Date        05/01/2009
	DOY         121 2009
	Thrusters   2R 4R+ 4R-
	Duration    13:40 min
	Start       21:48:40z
	Stop        22:02:20z
	HGAStart    -7.58deg
	HGAStop     +7.80deg
	SunStart    17.16deg
	SunStop      5.36deg
	SpinStart   5.0077rpm
	SpinStop    5.0120rpm
	Nutation     0.19deg
	Firing      69 pulses
	FuelUsed      0.2251lbs
	FuelRemain  143.4548lbs
	FinalSCMass 1377.715lbs

The next attitude maneuver is scheduled for Friday 05/15/2009.

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OCRs:

None

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Activities:

Data Capture:  100%  DOY 109-116 2009

The ASC address for receiving real-time data changed on April 14.  The
request for updating the GSFC fanout continues to work through the
NISN/Nascom system.  ASC (ACE Science Center) has not received real-time
data since April 14.

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Anomalies:

Update on AR#G09-0027  DSS-27 Red
DSS-27 downtime may be extended to Tuesday May 12 (currently expected to
end Friday May 8).  ACE has 3 DSS-27 over this additional 4 day period.
The schedule will be modified when further information is available.


DOY 120  04/30/2009  S-ACE-0435  G09-0030  DSS-54 Antenna Stopped
DSS-54 ground antenna stopped at 1048z.  The station resumed tracking
and uplink by 1100z.
IMPACT:  Minimal.  No commanding was required during this time.  SSR
redumps were performed at the end of the pass.