ACE Weekly 05/26/06 - 06/01/06

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

	Type         Attitude  	
	Date         05/26/06  	
	DOY          146 2006  	
	Thrusters    2R 4R+ 4R-	
	Duration     12:15 min	
	Start Time   15:03:29z	
	Stop Time    15:15:44z	
	Start HGA    -5.80 deg		
	Stop HGA     6.20 deg 		
	Firing       62 pulses	

The next attitude maneuver is scheduled for Wednesday, 06/07/06.

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OCRs:

None

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Ongoing Activities:

Attitude Training - The FOT continues training on attitude determination,
maneuver planning, and maneuver execution.  The Attitude Peer Review was
held on 06/01/06.  The transition date is scheduled for 06/16/06.

DSN - The first Service Preparation Subsystem (SPS) Engineering Demo was on
05/31/2006.

RIONET - An ACE RIONET Transition Meeting was held on 05/24/06.  A licensing
issue with the firewalls needs to be resolved before the MOC can be
transitioned.  

Space Link Extension (SLE) - ACE SLE version 2.1 was delivered to the
Library on April 28, 2006.  The delivery to the ACE MOC will not occur until
after String 3 is converted to the RIONET.

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Extra Activities:

DOY 145 (05/25/06) - The DSN 0158 Monitor Data server was switched from
fanoutcontour to MUD-CD2 in preparation for the RIONET transition.

DOY 152 (06/01/06) - Jim Raines provided the FOT with updated limits for
four SWICS mnemonics. 

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Anomalies:

DOY 148 (05/28/06)  G06-0057  DSS-27 - Late AOS
DSS-27 encountered problems when commanding the antenna to point.  Telemetry
was put online 36 minutes late.  DR G106760.
IMPACT: AOS delayed 36 minutes.  All data recovered.  

DOY 150 (05/30/06)  G06-0058  DSS-27 - Telemetry Outage
For unknown reasons, DSS-27 lost telemetry for 25 minutes during the pass.
DSS-27 was not able to re-establish the uplink for another 10 minutes after
telemetry was online.  DR G106766.  
IMPACT: All data was recovered.

DOY 150 (05/30/06)  G06-0059  ROBOTT - C&C Failed to Resume after Pause
C&C paused itself and failed to resume after a 25 minute telemetry outage.
C&C thought it was in a manually-paused state.  This has happened once
before in April 2005.  CDSID 21191 was opened against ROBOTT/C&C in 2005.   
IMPACT: SSR clean-up and end of pass activities were not performed.  All
data was recovered during the following support.

DOY 150 (05/30/06)  S06-0007  SSCPAM5V Red High Limit Violation
SSCPAM5V had 1 brief red high limit violation (RH > -4.50 V).
	2006-150 18:04:14 - 18:04:39  -4.451 V.
Jim Raines was notified.
IMPACT: Unknown at this time.

DOY 150 (05/30/06)  S06-0008  SSCGR20V Yellow Low Limit Violation
SSCGR20V had 1 brief yellow low limit violation (YL < 17.0 V). 
	2006-150 17:40:26 - 17:41:02  16.90 V.
Jim Raines was notified.
IMPACT: Unknown at this time.