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.
Getting Hard Copies of Images
Ways to obtain photos, slides, etc of Chandra images.
Operations CXO Status Report

Friday 21 December 2001 9.00am EST

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

A realtime procedure was completed on 17 Dec to swap from SSR-B to SSR-A. SSR-A had become full following a series of missed DSN passes caused by technical problems at the sites. Recording automatically switched to SSR-B to avoid data loss. All the data from both recorders were recovered at the next and subsequent passes however, thus maintaining the mission record of no data loss due to over-filled recorders.

A Chandra press release was issued on 19 Dec describing the "aftermath of a titanic explosion" in the elliptical galaxy NGC 4636. For further details and images showing the 25,000 light year symmetric arcs resulting from the explosion, see:

The mission planning team completed work on the 2-week schedule to span the holiday period. The schedule of observations is shown below and includes a series of grating observations of Comet Linear, and an observation of Alpha Tauri coordinated with the Hubble Space Telescope.

Q1245-197 ACIS-S Dec 23 PSS0957+3308 ACIS-S CHVC125 ACIS-S A2294 ACIS-I Dec 24 Cygnus Loop NE2 ACIS-S Radiation Belts Dec 25 Beta Ceti HRC-S/LETG G78.2+2.1 ACIS-I Dec 26 CYG X-1 ACIS-S/HETG Dec 27 A168 ACIS-I Radiation Belts HD 37022 ACIS-S/HETG Dec 28 Alpha Tauri HRC-I SDSS020651+121624 ACIS-S Dec 29 Vela PWN ACIS-S NGC 4038/NGC 4039 ACIS-S Radiation Belts Dec 30 Comet Linear (4 obs) ACIS-S/LETG Dec 31 PSS0134+3307 ACIS-S NGC 4051 HRC-S/LETG HZ43 (3 obs) HRC-S/LETG Jan 1 Radiation Belts Jan 2 VW CEP HRC-S/LETG TXS 0145+386 ACIS-I Jan 3 Radiation Belts Jan 4 A168 ACIS-I Jan 5 1E1207.4-5209 ACIS-S 1RXSJ161411.3-630657 ACIS-I Jan 6 HD123445 ACIS-I Q1328+254 ACIS-S PSS 1539+4312 ACIS-S RX J1605+3249 ACIS-I


All spacecraft subsystems continued to operate nominally.

The next report is planned for January 4 following the holiday. A Happy Holiday and New Year to everyone from the entire Chandra Team!

Return to Status Reports