ACIS Instrument Support - Monthly Progress Report for October 2006

1.  ACIS Characterization

1.3 Monitor scientific on-orbit performance of ACIS

  ...  Continued monitoring of ACIS CTI, gain, trailing pixel 
pulseheight, detector efficiency, corner pixel distribution, and 
spectral line centroid and width. Updated monitoring web pages.  
(http://space.mit.edu/~cgrant/monitor.html)

  ...  Continued work on memo for the operations team on the 
consequences of a future, unprotected radiation belt transit by ACIS.  
Received final inputs quantifying the magnitude of temporal variations.
Final version incorporating this data should be released soon.


2.  Engineering

2.1 Instrument hardware engineering performance

  ...  Continue to monitor long term ACIS instrument performance.
ACIS engineering parameters remain nominal.

2.3 Instrument science performance

  ...  Did an assessment of ACIS diagnostic test which collected
housekeeping data with all ten video boards powered on. These data 
were compared to that taken in 1999.  No significant changes in
voltages were seen.

  ...  Continued daily quick-look processing of ACIS telemetry and 
maintained Web interface to ACIS real-time data.

  ...  Continued to publish the "annotated DOT" timeline reports.


3.  CXC Support

3.1 Provide user support

  ...  Updated ACIS memo listing calibration ObsIDs and observation
characteristics (ACIS Memo #165).

3.2 Provide data analysis support

  ...  Participated in CXC Cal/Ops modelling discussion group.  

  ...  Reviewed results from analysis of S1 and S3 cal source and
E0102 data with new CTI correction and calibration.  Results very good.
Should be released as part of a joint CALDB/CIAO update in December.

  ...  Reviewed effective area plots to be incorporated into cycle 9
PIMMS.

  ...  Continued to maintain ACIS calibration database of ground and 
flight data products.

4.  OCC Support

4.1 Use of MIT/ACIS EGSE at OCC

  ...  Continued support and maintenance of ACIS EGSE software and 
hardware at the OCC.

  ...  Continued work on improving configuration management of the ACIS
workstations in the TST area of the Chandra OCC.  Work nearly complete.


Outreach:

None

all recent memos available at http://space.mit.edu/ACIS/iacis.html