|
|
|
| Status | page | Description | Date |
|---|---|---|---|
| Update | Dowload CalDB 3.4.3 | CalDB 3.4.3 with new EPOCH 32 and EPOCH 0 (FP_TEMP=-110C) T_GAINS is now available. | 3/31/08 |
| New Page | Download CalDB 3.2.4 | CalDB 3.2.4, which includes some upgrades to the ACIS T_GAIN suite for observations from 2005-02-01 through the present, has been released. | 11/7/06 |
| Update | Low Energy Transmission Grating Spectrometer Observer Information | added memo and link to paper on the relevance of Compton Scattering in white dwarf atmospheres for the LETG+HRC-S low E calibration. | 3/2/06 |
| New Page | Extragalactic Surveys | A Chandra Science Workshop, November 6-8, 2006. | 2/17/06 |
| update | Proposer Pages | All related Proposer documentation has been updated for Cycle 8 | 12/16/05 |
| New Page | The HRMA User's Guide | Characteristics of Chandra's High Resolution Mirror Assembly | 2/24/05 |
| Update | MARX 4.2 | MARX 4.2 has been released. It is available for download from the MARX web page. | 12/16/04 |
| Update | Cycle 7 CfP | The Cycle 7 Call for Proposals was released on December 15, 2004. The Cycle 7 proposal deadline is March 15, 2005. Proposal tools and information are available on the Proposer pages | 12/16/04 |
| New Page | ACIS-S/Grating Spectral Feature Positions | This spectrum visualization tool allows users to choose a Y-axis offset and redshift and then displays where spectral features fall on the ACIS-S array when using the LETG or HETG. | 12/13/04 |
| New Page | New Pitch Angle Restrictions | New restrictions on pitch angle for Chandra. | 11/19/04 |
| New Page | Chandra Calibration Workshop Proceedings | Proceedings from the 2004 Chandra Calibration Workshop (held Oct 25-26) are being published as they are received from the presenters. | 11/15/04 |
| New Page | Chandra Paper Statistics | Presents plots and statistics tracking Chandra-related publications. | 10/21/04 |
| New Page | LETG Observer Information | Updates to main page (minor reorganization, remove very old pages, add list of LETG published documentation)--updated Calibration Status and LETG/HRC Effective Area--new pages on LETG/HRC Dispersion Relation and Degap Map | 10/19/04 |
| Update | HRC Timeline | We have revised the HRC timeline webpage to include HRC related changes to CIAO, standard data processing, and the CALDB, as well as changes to the instrument settings. | 10/7/04 |
| Update | Filtering HRC Data | Page has been reorganized to be clearer and more helpful. | 8/23/04 |
| Update | 2004 Chandra Calibration Workshop | The website for this year's Calibration Workshop is up to accept registrations and abstract submissions. | 7/30/04 |
| Update | Chandra Fellowship Program | updates for this year | 7/29/2004 |
| Update | Cycle 6 Recommended Targets Announced | Updated page with cycle 6 lists | 7/2/2004 |
| Update | HRMA Calibration: Point Spread Function | Added Enclosed Count Fractions (ECF) using circular and elliptical apertures; added memo on on-orbit PSF wings | 6/28/04 |
| Update | Cas A Megasecond Observations | The first of the Cas A 1 Ms ObsIds are now public. The archive's What's New page gives advice on how to make the download less painful. | 5/7/04 |
| New Page | Calculate Exposure Time for a Single Line Detection using ACIS-S/HETG | New Proposer Thread | 2/25/04 |
| New Page | Simulating HETGS Spectra of Spatially Complicated Sources | New Proposer Thread | 2/25/04 |
| New Page | X-Ray Imaging of the Jet in J2310-43 | New Proposer Thread | 2/25/04 |
| New Page | ACIS Calibration Validity Checks | Description for users to confirm the validity of ACIS Gain calibration at the time of their observations | 2/19/04 |
| New Page | Galaxies Viewed with Chandra Workshop | Announcement of the Galaxies Viewed with Chandra workshop, and related pages | |
| New Page | Chandra Calibration Workshop Proceedings | Proceedings from the 2003 Chandra Calibration Workshop (held Oct 27-28) are being published as they are received from presenters. | 11/6/03 |
| Update | Gain Response of the HRC | Page has been updated to include memos and plots on gain evolution, the latest gain model for the HRC-S, and the current status of HRC gain maps in the CALDB. | 9/18/03 |
| Update | 2003 CHANDRA Calibration Workshop | The website for this years Calibration Workshop is up and running to accept registrations and abstract submissions. | 9/11/03 |
| Update | Chandra/CIAO Workshops | 5th Chandra/CIAO Workshop announced for 29-31 October 2003. | 8/07/03 |
| Update | Chandra Postdoctoral Fellowship Program | Updates to Fellowship pages | 7/28/03 |
| Update | What's New in the Chandra Data Archive |
WebChaSeR access through the mirror site at LEDAS WebChaSeR may now be accessed through LEDAS, providing better performance for our European users who are only interested in downloading public data or just in browsing the Observation Catalog. There is no access to proprietary data. | 7/7/03 |
| Update | What's New in the Chandra Data Archive | Chandra group in ADS The ADS main search page now also has a Chandra group, allowing its users to filter publication searches on Chandra-related articles. | 7/7/03 |
| Update | HRC Flat Field Response | Added link to memo about QE uniformity of the HRC-I at low energies. | 6/24/03 |
| Update | Four Years of Chandra Observations: A Tribute to Riccardo Giacconi | Chandra Symposium, September 16-19 in Huntsville, Alabama | 5/9/03 |
| New Page | Report of the Users' Committee meeting | Report of the fifteenth Users' Committee meeting (17-18 Dec. 2002, report issued on 29 April 2003) | 5/1/03 |
| New Page | The AXAF Guide and Acquisition Star Catalog | Web interface to the Chandra guide star catalog (version 1.5) | 3/8/2003 |
| Update | RESPONSE PRODUCTS RELEASE NOTES FOR ACIS | Release notes for the new front illuminated chip, ACIS-I and S2, response matrices have been posted. | 2/4/03 |
| New Page | CTI caveat | Caveat for CTI corrected response matrix | 12/24/02 |
| New Page | Cycle 5 Proposal Information | Link to the CfP and associated documentation and software | 12/13/02 |
| New Page | Chandra Ray Tracer (ChaRT) | ChaRT: Web Interface to PSF simulator | 12/13/02 |
| New Page | ATOMDB 1.3.0 | ATOMDB v1.3.0 released | 12/13/02 |
| New Page | Proceedings of the Chandra Calibration Workshop | Presentations given at the 2002 Chandra Calibration Workshop (Nov. 6-7) are posted. | 12/3/02 |
| New Page | Cycle 4 TOOs can be triggered from Nov 1, 2002. | Cycle 4 TOOs start date | 10/31/02 |
| New Page | Particle background analysis | Dark moon observations and observations with ACIS stowed | 10/28/02 |
| Update | CDA: What's New | The primary data products of all public
Chandra observations are now available
from an anonymous ftp site,
cdaftp.
Note that, although it provides access to these data products by
ObsId, there are no search and query facilities. See the README file for details. | 9/19/02 |
| Update | HRC Hot/Bad Pixel Maps | Includes version 2 of the hot/bad pixel map for the HRC-I. | 8/23/02 |
| Update | HRC On-Axis Effective Area | New version 2.1 of the HRC-I On-Axis Effective Area Model | 8/23/02 |
| Update | MCP Quantum Efficiency | New version 2.1 of the HRC-I Flight QE Model | 8/23/02 |
| Update | LETG Observer Information: LETG+HRC-S EA | Updated calibration of LETGS effecive area; new effective area files and response matrices. | 8/19/02 |
| Update | CDA: What's New | Public DDT Observations of GRB020813 2002-08-16 The recent Chandra observations of Gamma Ray Burst GRB020813 are available from custom processing through the CP page of the Provisional Retrieval Interface. | 8/16/02 |
| New Page | Analysis of ACIS Data Affected by the Low Energy QE Degradation | This memo is an update to the report of April 5, 2002 concerning the reduction in the ACIS low energy QE. A summary of the results of the investigation into this problem and provide observers with advice and new tools to use in their spectral analysis of ACIS data | 7/26/02 |
 |
The Chandra X-Ray
Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxcweb@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2004. All rights reserved. |
Last modified: 03/31/08