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Chandra Electronic Bulletin No. 64

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Chandra      |             CC     XX XX    OO OO          | CXC
Electronic   |            CC       XXX    OO   OO         | Number 64
Bulletin     |             CC     XX XX    OO OO          | August
             |              CCC  XX   XX    OOO           | 2007
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Welcome to the Chandra X-ray Center's Electronic News Bulletin Number 64.

CXC Web site: cxc.harvard.edu

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1.  Data Reprocessing to Correct Recent Aspect Offset


3.  Reminder:  Registration for Eight Years of Science with Chandra 

4.  Reminder: Cost Proposal Deadline for Cycle 9

Item 1.  Data Reprocessing to Correct Recent Aspect Offset

We have begun to reprocess (Repro 3.1) all data obtained after  2006-Dec-10 
and processed on or before 2007-May-22. These data were subject to a 
systematic aspect offset of approximately 0.4 arcsec, believed to be the 
of a changed thermal environment following the procedure to cool the ACA
CCD from -15C to -19C that took place between late Nov-2006 and early
Jan-2007.  This error has been corrected in the newly processed version of
the data, which we expect to be complete within a few weeks. 
More information is available at:


Belinda Wilkes  
Assistant Director
Chandra X-ray Center (CXC)



The CXC organizes Chandra Science Workshops on topics of interest
to X-ray observers and theorists alike.  Workshop goals are to
optimize Chandra science productivity by   
    * identifying science areas ripe for progress
    * identifying the most pressing scientific questions 
    * debating good Chandra strategies to answer them

Past workshops are listed at http://cxc.harvard.edu/cdo/past-conf.html

This year's Chandra Science Workshop on X-ray Grating Spectroscopy
was a great success.  Thanks to all participants!  You generated lots
of discussion about physics and modelling that spanned the usual
object-class segregation.  Abstracts and presentations have 
now been posted to  

We are soliciting ideas for future workshops.
The scope of a workshop topic should be likely to generate between
50-100 attendees, and span 2-3 days duration.   If you suggest a meeting 
topic, please feel free to suggest some likely members of a Scientific 
Organizing Committee as well.

Paul Green
for the Chandra Director's Office


Item 3.  Registration for Eight Years of Science with Chandra


Early registration for Eight Years of Science with Chandra ends August 31. 


Dan  Schwartz 
for the Organizing Committee


Item 4.  Reminder: Cost Proposal Deadline for Cycle 9

The e-letters including detailed results of the Cycle 9 peer review are being 
mailed to PIs this week. Those proposals which have been recommended for time
and have US-based PIs or co-Is are reminded that the deadline for submission 
of cost proposals is 13 Sept 2007, 6pm. For instructions and information please
refer to the Proposer pages on the CXC website and/or Chapter 8 of the Cycle 9 

Belinda Wilkes
Assistant Director
Chandra X-ray Center (CXC)



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Last modified: 12/03/10

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