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 8 January 2016 9.00am EST

During the last two weeks Chandra completed the observing schedule as planned.

Real-time procedures were executed on Dec 25 to dump OBC-B memory as a follow-up to the patch uplink performed on Dec 23. The dump will be used to update the baseline memory image maintained on the ground.

A real-time procedure was executed on Jan 6 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer.

Preparations are complete for the winter 2016 eclipse season; the season contains six eclipses and runs from Jan 8 to 22. Real-time procedures were executed on Jan 7 to prepare for the first eclipse: one to activate SCS 29 and one to dump and clear the EPS glitch counters.

A Chandra press release was issued on Jan 5 describing observations of the supermassive black hole at the center of the nearby galaxy NGC 5195. This is one of the nearest supermassive black holes to Earth with active powerful outbursts that has yet been discovered. Such outbursts are part of the "feedback" process that is important to the evolution of the black hole and its host galaxy. Two arcs in the X-ray data suggest separate eruptions from the black hole occurred millions of years ago. For details see:

A Chandra press release was issued on Jan 6 as a CU-Boulder press release describing observations of a recently discovered black hole, which does not have the expected number of stars surrounding it. The galaxy SDSS J1126+2944 is the result of a merger between two smaller galaxies, which brought together a pair of supermassive black holes. One of the black holes is surrounded by a typical amount of stars, but the other black hole is strangely “naked” and has a much lower number of associated stars than expected. For details see:

A Chandra press release was issued on Jan 7 describing observations of IDCS J1426.5+3508, an extremely distant massive cluster of galaxies. This is the most massive galaxy cluster detected at such an early epoch in the Universe. X-rays from Chandra confirmed the cluster's mass and showed that about 90% of that mass is in the form of dark matter. For details see:

The schedule of targets for the next two weeks is shown below

        Radiation Belts                     Jan 10
        LocalLeoColdCloud      ACIS-S
        SDSSJ095744.46+3308    ACIS-S       Jan 11
        Radiation Belts
        PSRB1259-63            ACIS-I       Jan 12
        202059188              ACIS-S
        LocalLeoColdCloud      ACIS-S
        IRAS07145-2914         ACIS-S       Jan 13
        SDSSJ110017.99+1002    ACIS-S
        3CR230                 ACIS-S
        Radiation Belts                     Jan 14
        ZwCl2341.1+0000        ACIS-I
        PMNJ2314+0201          ACIS-S       Jan 15
        NGC2892                ACIS-S
        3CR222.0               ACIS-S
        PSRB0943+10            ACIS-S
        PSRB1259-63            ACIS-I       Jan 16
        2MASXJ10195855-0234    ACIS-S
        SDSSJ095744.46+3308    ACIS-S
        Radiation Belts                     Jan 17
        3C220.1                ACIS-S
        SDSSJ114921.52+5320    ACIS-S
        Plaskett'sstar         ACIS-S/HETG  Jan 18
        2MASXJ04293830-2109    ACIS-S
        Plaskett'sstar         ACIS-S/HETG
        Radiation Belts                     Jan 19
        30Doradus              ACIS-I       Jan 20
        SDSSJ1010+1413         ACIS-S
        SDSSJ1220+0440         ACIS-S
        XLSSJ022812.1-04384    ACIS-S       Jan 21
        Plaskett'sstar         ACIS-S/HETG
        XLSSUJ021700.3-0347    ACIS-S
        30Doradus              ACIS-I
        Radiation Belts                     Jan 22
        30Doradus              ACIS-I
        Plaskett'sstar         ACIS-S/HETG
        RXCJ091651.8+523829    ACIS-I       Jan 23
        IRAS07145-2914         ACIS-S
        Radiation Belts                     Jan 24
        3C220.1                ACIS-S


All spacecraft subsystems continued to support nominal operations.

Return to Status Reports