ACE Weekly 03/16/2007 - 03/22/2007

All ACE spacecraft subsystems are performing nominally.

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

	Type        Attitude       Attitude
	Date        03/16/2007     03/16/2007
	DOY         075 2007       075 2007
	Thrusters   2R 4R- 4R+     2R 4R- 4R+
	Duration    4:47 min       7:30 min
	Start       16:27:06z      17:45:28z
	Stop        16:31:53z      17:52:58z
	StartHGA    -5.19 deg      -0.53 deg
	StopHGA     -0.53 deg      +7.09 deg
	Firing      25 pulses      38 pulses
	FinalSCMass 1392.116lbs    1392.074lbs

Station-keeping maneuver #43 has been re-scheduled for Monday, 04/02/2007.

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

None

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

DOY 081 (03/22/2007) - The support was completed manually without automation
for training.

RIONET
* An operational test of RIONet will be performed on April 4, 2007 (DOY
094).  The RIONet will be used for the entire ACE support with DSS-66.  The
Closed IONet will serve as backup.
* String 2 conversion is targeted for April 18, 2007.

ROBOTT
* Testing of the recent patch (v1.0.3) has been completed.  This patch
allows ROBOTT to work with the RIONet (CDSID#22954 and #23091).

Space Link Extension (SLE) - ACE SLE version 2.1 was delivered to the
Library on April 28, 2006.  Installation in the ACE MOC will not occur until
after the MOC is converted to the RIONET.

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

Update on Anomaly G07-0018 - DSS-66 Bad Ground Receipt Time
The bad Ground Receipt Time problem from DOY 073-074 did not recur for the
ACE pass on DOY 076.  The ACE Science Center was able to successfully
process the DOY 076 CDR files.  Polar, Geotail and SOHO also had similar
problems with their DSS-66 DOY 073-074 CDR files and the ACE team provided
support for their data recovery.


DOY 077  03/18/2007  S-ACE-0159  G07-0020  DSS-66 Late Acquisition
Station had problems with both MFRs during the previous support with SOHO.
The MFR problem was resolved after the SOHO pass and station was able to
support the ACE pass.  Activities were delayed 11 minutes while DSS-66 was
configuring for the ACE support.
IMPACT:  Minimal.  Activities delayed 11 minutes.

DOY 079  03/20/2007  S-ACE-0160  G07-0021  ROBOTT/C&C 2 procedures started
ROBOTT started 2 procedures at the same time; G_END_DAY/21:25:03 and
S_OPS_PLBK_COMPLETE/21:25:07.  TPOCC did not continue with
S_OPS_PLBK_COMPLETE, but G_END_DAY completed successfully.  The 2 procedure
problem last occurred 02/04/2007 and is a recurring problem that the
developers are aware of.  CDSID#21085 & #21122
IMPACT:  SSR redumps were performed on the following support.