chandra-announce

CSC2.0 vs SDSS crossmatch catalog The Chandra Source Catalog team is pleased to announce that the

Dual Anonymous Proposal Review (DAPR) and Proposal Deadline This is a gentle reminder that: The

LETG/HRC-S observations: PI filtering and gain maps + observations after 2018 The HRC-S gain map was

Chandra Events at the AAS 237 The Chandra Director's Office would like to bring to your attention

The Fall Edition of the Chandra Newsletter is now available: https://cxc.cfa.harvard.edu/newsletters/

CIAO 4.13, Chandra CALDB 4.9.4, DS9 8.2, MARX 5.5.1 released The Chandra X-ray Center (CXC) is

Chandra Cycle 23 Call for Proposals Released 16 December 2020 The CXC is pleased to announce the

Chandra/CIAO Workshop at Virtual AAS #237 Are you new to Chandra data and the Chandra Interactive

CSC 2.0.1 VARIABILITY UPDATE Release 2.0.1 of the Chandra Source Catalog updates intra-observation

Memorial Symposium to Honor Riccardo Giacconi - Presentations Posted The Space Telescope Science

Release of the Sherpa 4.12.2 package for Python. The Sherpa 4.12.2 package for Python was released on

The Chandra X-ray Center is pleased to announce that the fifth major reprocessing campaign of the

SAOTrace 2.0.5: SAOTrace 2.0.5 is now available, superseding version 2.0.4. There should be no user-

The Chandra X-ray Center announces the retirement of the unencrypted and anonymous Chandra Data

The session schedule for the Chandra Frontiers in Time-Domain Science workshop is now available:

CIAO contributed scripts with significantly enhanced dax released on 22 Sep 2020 A new contributed

Announcing the replacement of “bad” target names in the Chandra Data Archive In order to make it

On behalf of the NASA Astrophysics Division, the Space Telescope Science Institute (STScI) announces

Last Call for Contributions to Chandra Frontiers in Time-Domain Science This Wednesday, August 26th,

Invited Speakers for Chandra Frontiers in Time-Domain Science The Chandra Frontiers in Time-Domain

Chandra Cycle 22 Peer Review Results Released Lists of targets plus archive and theory proposals

Temporary Restrictions on Chandra DDT and ToO triggers: 25 July - 9 August 2020 Due to a major flight

Availability of Blank Sky HRC-S Observations The CXC would like to inform the community that two new

CIAO/Sherpa 4.12.1 released on 14 Jul 2020 CIAO 4.12.1 has been released with a new version of Sherpa

Update to Chandra Frontiers in Time-Domain Science Due to the current circumstances, the science

The Nancy Grace Roman Space Telescope, formerly known as the Wide-Field InfraRed Survey Telescope, is

CHANDRA AND OTHER X-RAY RELATED EVENTS AT THE 236th AAS The Chandra Director's Office would like

Dear Chandra Users, We are happy to announce the release of our new electronic format Chandra

Version 4.12.2 of the Contributed Scripts and Modules package is available Version 4.12.2 of the

COVID-19 impact and update on Chandra Cycle 22 supplemental call. The Chandra community responded to