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 22 April 2016 9.00am EDT

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

Real-time procedures were executed on Apr 20 and 21 to turn off the on-board ranging drive function during communications contacts with the Deep-Space Network ground station DSS-54. This action is taken to collect additional characterization data on this station's performance, in order to understand the cause for regular instances of dropped telemetry frames when using this station.

A Chandra image release was issued on Apr 18 describing observations of Comet ISON and Comet PanSTARRS when these comets were relatively close to the Earth. The X-ray emission is produced when a wind of particles from the Sun strikes the comet's atmosphere. The Chandra data was used to estimate the composition of the solar wind, finding values that agree with independent measurements. For details see:

The schedule of targets for the next week is shown below and includes an observation of IGR J17091-3624, which was accepted as a Target of Opportunity on Mar 25 and is coordinated with NuSTAR, and observations of 2MASS J10051641+1703264, and 2MASS J11280702+0141304 coordinated with ground-based observatories.

        A1978                  ACIS-I       Apr 25
        Abell1795outskirts     ACIS-I
        SDSSJ2222+2745         ACIS-S
        Radiation Belts                     Apr 26
        UGC11185               ACIS-S
        2MASSJ10051641+1703    ACIS-S       Apr 27
        2MASSJ11280702+0141    ACIS-S
        M87                    ACIS-S
        BootesCy17-12          ACIS-I
        Abell1795outskirts     ACIS-I
        M87                    ACIS-S       Apr 28
        DragonfishAssociati    ACIS-I
        Radiation Belts                     Apr 29
        SDSSJ2222+2745         ACIS-S
        4U0513-40              ACIS-S/HETG
        XMMUJ122939.9+07533    ACIS-S       Apr 30
        ALPHACEN               HRC-I
        IGRJ17091-3624         ACIS-S/HETG
        M87                    ACIS-S
        4U0513-40              ACIS-S/HETG  May  1
        Radiation Belts                     May  2
        4U0513-40              ACIS-S/HETG
        ngc4406                ACIS-I


All spacecraft subsystems continued to support nominal operations.

Return to Status Reports