News by Date
2025     2024     2023     2022
2021     2020     2019     2018
2017     2016     2015     2014
2013     2012     2011     2010
2009     2008     2007     2006
2005     2004     2003     2002
2001     2000     1999     1998
1997    
News by Category
Solar System
Stars
White Dwarfs
Supernovas
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Quasars
Galaxy Clusters
Cosmology/Deep Field
Miscellaneous
Press Resources
Status Reports
Press Advisories
Image Releases
Release Guidelines
Image Use Policy
Web Shortcuts
Chandra Blog
RSS Feed
Image Use Policy
Questions & Answers
Glossary of Terms
Operations CXO Status Report

Friday 9 December 2011 9.00am EST

During the last week Chandra completed the observing schedule as planned.

A flight software patch was uplinked on Dec 6 to remove the EPHIN E150 channel from use within the on-board RadMon process for the detection of a high-radiation environment. This patch eliminates the possibility of a false trigger due thermally induced noise in the channel. Real-time procedures were executed on Dec 7 to dump OBC-A memory as a follow-up to the patch. The dump will be used to update the baseline memory image maintained on the ground. An additional real-time procedure was executed on Dec 7 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer. A real-time procedure was executed on Dec 8 to update the on-board ephemeris.

Of note this week was the release on Dec 2 of CALDB 4.4.6.1. This release provides an update to the HETG grating efficiency file. For details see:

The schedule of targets for the next week is shown below



------------------------------------------
Radiation Belts                     Dec 12
         SPT-CLJ2146-4632       ACIS-I
         RXCJ0605_Field4        ACIS-I       Dec 13
         ZetaOrionis            ACIS-S/HETG
         SDSSJ082212.57+2753    ACIS-S
         A1767                  ACIS-I
         J144105.53+045454.95   ACIS-S       Dec 14
         SDSSJ1442+0920         ACIS-S
         1321+045               ACIS-S
         GJ3622                 ACIS-S
         Radiation Belts
         A401                   ACIS-I
         ABELL545               ACIS-S       Dec 16
         J1857.9-7830           ACIS-I
         A1882c                 ACIS-S       Dec 17
         Radiation Belts
         PSRB1259-63            ACIS-I
         A1882b (2 obs)         ACIS-S       Dec 18
         A1882c                 ACIS-S

------------------------------------------

All spacecraft subsystems continued to support nominal operations.

Return to Status Reports