[Date Prev][Date Next][Thread Prev][Thread Next][Search]
[HEASARC Mailing List Archives]
GSFC XMM-Newton GOF Status Report #247: XMM-NEWTON NEWS #144
_/ XMM-NEWTON NEWS #144 --- 18-Dec-2012 _/
XMM-Newton Science Operations Centre at
ESA's European Space Astronomy Centre,
P.O. Box - Apdo. 78, 28691 Villanueva de la Canada, Madrid, Spain
SOC Home Page:
Helpdesk Web interface:
Helpdesk email address:
News Mailing List:
- Anticipated timeline for AO-13
- 13th XMM-Newton SAS Workshop
- EPIC MOS1 Event of Revolution 2382
Anticipated timeline for next XMM-Newton Announcement of Opportunity: AO-13
The planned key milestones for the thirteenth XMM-Newton "Announcement
of Opportunity" have been established. Within this AO-13 a new call to
submit proposals for observations to be performed with the XMM-Newton
observatory will be issued.
To be prepared for this, please find below the anticipated timeline:
Announcement of Opportunity........................... 27 August 2013
Due date for Proposals.................... 11 October 2013 (12:00 UT)
Final OTAC approved programme...................... mid December 2013
For approved proposals only:
Start of phase II proposal submission................ 08 January 2014
Closure of phase II proposal submission.............. 31 January 2014
Start of AO-13 observations................................. May 2014
The official "Announcement of Opportunity" will be made public in the
XMM-Newton News and on the XMM-Newton Science Operations Centre Home
13th XMM-Newton SAS Workshop
The XMM-Newton SOC announces the 13th SAS Workshop, which will be held
at the European Space Astronomy Centre of ESA, Madrid, Spain, between
the 10th and the 14th of June 2013.
SAS Workshops aim at providing XMM users with a basic introduction to
the procedures and techniques to successfully reduce and analyse
XMM-Newton data. The 5-day workshop is organised around 5 half-days of
presentations and 5 half-days of practical training sessions. The
sessions cover all aspects of data reduction and data analysis for all
the X-ray cameras and the Optical Monitor on-board XMM-Newton.
More details will be given in a future XMM-Newton Newsletter. In the
meantime, mark your calendars!
EPIC MOS1 Event of Revolution 2382
At about 06:51 hrs (UT) on 11 December 2012, during XMM-Newton
revolution 2382, an event was registered in the focal plane of the
EPIC MOS1 instrument. The characteristics of the event were
reminiscent of a similar event registered in the MOS1 focal plane on 9
March 2005. In both cases a bright flash of light caused data buffer
overflows for the CCDs across the whole focal plane. The main
consequence of the event in 2005 was significant damage on MOS1 CCD6,
which was switched off shortly afterwards. In addition a number of new
hot or defective pixels were subsequently mapped and masked. The
consequences of the recent event appear to be of similar impact, with
the main result being MOS1 CCD3, another peripheral detector, being
significantly damaged this time. A number of new hot pixels and
columns have also developed on other detectors. The impact on the
central CCD is considered negligible at the time of writing this note.
Scientific observations are continuing normally with XMM-Newton,
including MOS1, but now without data from CCD3, or from CCD6 as a
result of the 2005 event. Impacts on data reduction will be minimal.
Intensive investigations are underway involving the ESA Operations
Team and the instrument PI team in an effort to fully characterise
potential changes in the instrument status.
It is anticipated that the science impact, even if CCD3 cannot be
recovered, will be small. CCD3 is one out of the six original
peripheral CCDs of MOS1. It covers, to a first order approximation,
slightly less than 1/7 (or 14%) of the geometrical area of MOS1.
MOS1, in turn, only contains some 22% of the total effective area of
the EPIC instrument with MOS1, MOS2 and pn operating
simultaneously. Therefore, the impact of the loss of CCD3 would be
zero for on-axis point sources and extended sources with radius
smaller than 5.5 arcmin. For sources falling on CCD3 or for the
extended emission of on-axis sources at distances larger than 5.5
arcmin, there is a 22% decrease in effective area (or 12% decrease in
signal-to-noise ratio) over 14% of the field.
In summary, the combined impact of the two events of March 2005 and
December 2012 remains zero for on-axis point sources. It results in a
12% reduction of the signal-to-noise in about 28% of the off-axis
field of view, for point-like or extended emission at radial distances
larger than 5.5 arcmin.
Please refer to the following Web page
for more details.
XMM-NEWS mailing list
This message and any attachments are intended for the use of the addressee or addressees only. The unauthorised disclosure, use, dissemination or copying (either in whole or in part) of its content is not permitted. If you received this message in error, please notify the sender and delete it from your system. Emails can be altered and their integrity cannot be guaranteed by the sender.
Please consider the environment before printing this email.
----- End forwarded message -----
A service of the XMM-Newton GOF, NASA/GSFC
Please do not reply to this email.
Questions or comments should go to: