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Operations CXO Status Report

Friday 26 January 2018 9.00am EST

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

A Chandra press release was issued on Jan 18 describing continued observations of the neutron star merger GW170817, which was first detected with gravity waves and a short gamma-ray burst on Aug 17. Scientists had expected the X-ray and radio afterglow of the explosion to fade, but much to their surprise, Chandra observations in December showed a continued brightening. This implies that the source is more complex than initially imagined. One theory is that the merger launched a jet that shock-heated the surrounding gaseous debris, creating a hot cocoon around the jet that has glowed in X-rays and radio light for many months. For details see: http://chandra.harvard.edu/press/18_releases/press_011818.html

The schedule of targets for the next week is shown below and includes an observation of MXB 1659-298, which is a follow-up to a Target of Opportunity which was accepted on Mar 17.



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Radiation Belts Abell1145 ACIS-S J1604+5633 ACIS-S Jan 30 PSOJ2232+2930 ACIS-S NGC3079 ACIS-S Radiation Belts Jan 31 NGC3079 ACIS-S SDSSJ160640.18+3005 ACIS-S PG1116+215 HRC-S /LETG 1RXSJ151642.1+291803 ACIS-I Feb 2 PG1116+215 HRC-S /LETG MXB1659-298 ACIS-S PG1116+215 HRC-S /LETG CGRaBSJ1606+3124 ACIS-S Feb 3 Radiation Belts HESSJ0632+057 ACIS-I ClGJ000008+320849 ACIS-I Feb 4 HESSJ0632+057 ACIS-I

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All spacecraft subsystems continued to support nominal operations.

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