ACE Weekly 07/06/2007 - 07/12/2007

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

No maneuvers were completed this week.  The next attitude maneuver is
scheduled for Friday, 07/13/2007.

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OCRs:

DOY 190 (07/09/2007)  GND-179  ROBOTT v1.0.3 Install String 1
This release of the ROBOTT ground automation software provides patches for
transferring files on the Restricted IONet.

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Activities:

RIONET - ACE has fully transitioned to the Restricted IONet.  JPL/DSN is no
longer required to flow ACE data on the Closed IONet.

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.

Planning continues for integrating ACE operations into a multi-mission ops
center (MMOC).

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Anomalies:

DOY 189  07/08/2007  S-ACE-0206  G07-0062  ROBOTT Did Not Schedule Pass
The ROBOTT ground software has difficulty processing a schedule with missing
pass numbers.  It also evaluates any DSN pass that has ' ACE ' in the
activity field.  This combination of problems is believed to have caused
ROBOTT to skip the ACE pass on Sunday, DOY 189.  The FOT reported to the MOC
at 1515z (BOT+30 minutes) and started troubleshooting the ROBOTT problems.
ROBOTT was restored at 1605z (BOT+80 minutes).
IMPACT:  SSR playback was completed on the following pass.  If the DOY 189
pass was completely lost, an SSR failover would occur and it would take 3-4
passes to catch up on the playback.

DOY 189  07/08/2007  S-ACE-0207  G07-0063  TPOCC/OS Bitbucket Error
The HPUX operating system occasionally returns a bitbucket error when the
TPOCC software executes a unix program.  The ROBOTT automation software is
designed to continue through the error.  Usually this is not a problem, but
on this occasion the procedure continued before the SSR redumps had been
calculated.
IMPACT:  Due to the bitbucket error, we lost a 10 minute opportunity to
catch up on the SSR playback.

DOY 190  07/09/2007  S-ACE-0208  G07-0064  Prepass Activities Not Executed
The ROBOTT ground software did not run the clock calibration or automated
archiving.
IMPACT:  Minimal.  Activities were performed manually.