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 11 September 2020 9.00am EDT

During the last week Chandra science observations continued to be suspended while the team completed the activation and checkout of the High Resolution Camera (HRC) anti-coincidence shield using the HRC B-side electronics.

Real-time procedures were executed on Sep 8 to turn on high voltage power to the anti-coincidence shield of the HRC. The shield rates operating on B-side electronics are as expected and consistent with earlier values during A-side operation.

Additional real-time procedures were executed during each ground contact to reset the DSN Outage Dead Man Load.

With the HRC anti-coincidence shield again in service as primary autonomous radiation monitor for safing of the science instruments in the event of elevated space radiation levels, and with additional operational precautions in place, a Return to Science Readiness Review was held on Sep 10. Following successful review, science observations with the ACIS instrument are scheduled to begin on Sep 12.

The schedule of targets for the next week is shown below and includes an observation of FRB190520, which was accepted as a Director's Discretionary Time Target of Opportunity on Aug 24, an observation of PSRJ1846-0258, which was accepted as a Director's Discretionary Time Target of Opportunity on Aug 13, an observation of 2MASXJ01110461-4558, which was accepted as a Target of Opportunity on Aug 24, and an observation of gx5-1 coordinated with NuSTAR and NICER.

        Radiation Belts                     Sep 12
        SNR1987A               ACIS-S/HETG
        SDSS235604.67-085423   ACIS-S       Sep 13
        GJ358                  ACIS-S
        CentaurusA             ACIS-I
        SPT-CLJ2205-2956       ACIS-I       Sep 14
        FRB190520              ACIS-S
        Radiation Belts                     Sep 15
        PSRJ1846-0258          ACIS-S
        Abell2495              ACIS-S
        eMACSJ1353.7+4329      ACIS-I
        H1821+643              ACIS-S       Sep 16
        2MASXJ01110461-4558    ACIS-S
        SDSS235604.67-085423   ACIS-S
        SNR1987A               ACIS-S/HETG
        Radiation Belts                     Sep 17
        SDSSJ101152.98+5442    ACIS-S
        H1821+643              ACIS-S       Sep 18
        Abell2495              ACIS-S
        H1821+643              ACIS-S
        Abell2495              ACIS-S       Sep 19
        gx5-1                  ACIS-S/HETG
        Radiation Belts                     Sep 20


The unavailability of the HRC instrument last week prevented nominal operations.

Return to Status Reports