News by Date
News by Category
Solar System
Stars
White Dwarfs
Supernovas
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Quasars
Galaxy Clusters
Cosmology/Deep Field
Miscellaneous
Press Resources
Status Reports
Press Advisories
Image Releases
Release Guidelines
Image Use Policy
NASA TV
Biographies/Interviews
Web Shortcuts
Chandra Blog
RSS Feed
Chronicle
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
Image Use
Image Use Policy & Request Form
Guidelines for utilizing images, applets, movies, and animations featured in this Web Site.
Getting Hard Copies of Images
Ways to obtain photos, slides, etc of Chandra images.
Operations CXO Status Report

Friday 3 February 2012 9.00am EST

During the last week the observing schedule was interrupted by a high-radiation event that activated the science instrument safing sequence (SCS 107) and stopped observing at 02:39pm EST on Jan 27. All spacecraft actions were nominal. A real-time procedure was executed on Jan 27 to disable SCS-29, which was enabled during the safing sequence. Observations of NGC3115, PSR J1650-4341, NGC 7662, and 1RXS J170047.8-31444 were impacted and will be rescheduled. Real-time procedures were executed on Jan 29 to verify that the radiation environment as observed by the HRC anticoincidence shield had decreased to an acceptable level and to start a collection of ACIS CCD charge-transfer inefficiency data. Loads for a replanned schedule were uplinked on Jan 29 with 163.4ks of science loss.

A real-time procedure was executed on Feb 1 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer. A second real-time procedure was executed on Feb 2 to update the on-board ephemeris.

A Chandra image release was issued on Feb 1 describing an observation of G350.1-0.3, a young and exceptionally bright supernova remnant about 15,000 light years from Earth. Its unusual shape suggests that the debris from the supernova explosion is expanding into a nearby cloud of cold gas. Astronomers think the star that created G350.1-0.3 exploded between 600 and 1,200 years ago. For details see: http://chandra.si.edu/photo/2012/g350/.

The schedule of targets for the next week is shown below and includes an observation of Parenago523_P1 coordinated with OVRO/CARMA.



------------------------------------------
Radiation Belts Feb 5 cl1501-0830 ACIS-I SgrA* ACIS-S/HETG Feb 6 J1139.2+0336 ACIS-I IC443 ACIS-S Radiation Belts Feb 8 IC443 ACIS-S A773 ACIS-I Feb 9 SDSSJ1143+0524 ACIS-S SgrA* ACIS-S/HETG SDSSJ1246+2625 ACIS-S Parenago523_P1 ACIS-S Feb 10 SDSSJ1201+0116 ACIS-S SgrA* ACIS-S/HETG SDSSJ1218+1536 ACIS-S Crab ACIS-S SDSSJ085416.76+5026 ACIS-S Radiation Belts 2XMMJ151558.6+56181 ACIS-S Feb 11 SgrA* ACIS-S/HETG 2XMMJ151558.6+56181 ACIS-S CXOJ181335.1-174957 ACIS-S Feb 12 SMCX-1 HRC-I HD187123 ACIS-S Feb 13

------------------------------------------

All spacecraft subsystems continued to support nominal operations.

Return to Status Reports