News by Date
News by Category
Solar System
White Dwarfs
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Galaxy Clusters
Cosmology/Deep Field
Press Resources
Status Reports
Press Advisories
Image Releases
Release Guidelines
Image Use Policy
Web Shortcuts
Chandra Blog
RSS Feed
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
Chandra @ NASA
Visit the Chandra pages at the NASA portal (opens in new window)
Image Use
Image Use Policy & Request Form
Guidelines for utilizing images, applets, movies, and animations featured in this Web Site.
Operations CXO Status Report

Friday 5 May 2017 9.00am EDT

A real-time procedure was executed on May 1 to uplink a flight software patch that updates the residual threshold used by the Aspect Camera in determining the attitude solution. This patch should limit the impact of spurious hot pixels on the attitude solution. Additional real-time procedures were executed on May 2 and 3 to dump OBC-A and -B memory as a follow-up to the patch. The dump will be used to update the baseline memory images maintained on the ground. A real-time procedure was executed on May 3 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer.

A Chandra press release was issued on May 2 describing observations of the Perseus Galaxy Cluster. Combining data from Chandra with radio observations and computer simulations has revealed a vast wave of hot gas spanning some 200,000 light-years in the Perseus galaxy cluster. For details see:

The schedule of targets for the next week is shown below and includes an observation of SDSS J1338-0124, which was accepted as a Target of Opportunity on Apr 11, PSR J1622-4950, which was accepted as a Target of Opportunity on May 3 and is coordinated with NuStar, IGR J17445-2447, which was accepted as a Target of Opportunity on Apr 25.

        SDSS J1338-0124        ACIS-S       May 8
        PSR J1622-4950         ACIS-S
        IGR J17445-2447        ACIS-S
        IGR J17508-3219        ACIS-I
        PSR B0740-28           ACIS-I       May 9
        Radiation Belts                     
        CygnusA-E Nucleus      ACIS-I       May 10
        Arp 81                 ACIS-S
        Terzian 1              ACIS-S
        NuSTARJ141056-4230.0   ACIS-S
        Terzian 1              ACIS-S       May 11
        Arp 81                 ACIS-S
        Radiation Belts                     May 12
        30 Dor C               ACIS-S
        Djprg 2                ACIS-S       May 13
        CU Vir                 ACIS-S
        CygnusA-E Nucleus      ACIS-I
        J154543.55+085801.3    ACIS-S       May 14
        Radiation Belts                     


All spacecraft subsystems continued to support nominal operations.

Return to Status Reports