Date |
Item |
|
03 Nov 2009
|
A new version of the Contributed Scripts and Modules tarfile has
been released; download the updated package from the
Scripts page.
-
SherpaCL
Initial release of the experimental sherpacl
application that allows users to use CIAO 3.4 syntax
for Sherpa and ChIPS commands in CIAO 4. The language
that can be used is currently limited. Refer to
"ahelp sherpacl" and the
the SherpaCL page on
the Sherpa website for more information and
usage examples.
We welcome user feedback on this project via the
Helpdesk.
-
New deflare script
The deflare script allows users to create a GTI filter
from a background lightcurve using either the lc_clean
or lc_sigma_clip methods directly from the UNIX
prompt, without having to start up ChIPS or Sherpa.
-
Improvements to lc_clean and lc_sigma_clip
Both routines have been updated to better handle data
with "extreme" lightcurves: either by erroring out or
being able to create GTI files which contain a large
number of time intervals.
The screen output (when verbose is set) has been
modified to provide more information on the length of
each interval.
|
|
02 Oct 2009
|
CIAO 4.1.2 is not officially supported on the Mac OS X
10.6 (Snow Leopard) platform, but there is a workaround
for installing the software in the
Unsupported
Platforms section of the Platforms page.
|
|
17 Sept 2009
|
CALDB has been updated to v4.1.4.
Information on the release is available from the
CALDB
4.1.4 Release Notes and
How CALDB 4.1.4 Affects Your Analysis.
Download CALDB 4.1.4
|
|
03 Aug 2009
|
A new version of the Contributed Scripts and Modules tarfile has
been released; download the updated package from the
Scripts page.
-
The sherpa_utils (S-Lang or Python help) module has been updated
to include save_instmap_weights (S-Lang or Python help);
its use is described in the
Calculating Spectral
Weights for mkinstmap (S-Lang or Python) thread.
-
A new module - ciao_utils (S-Lang or Python help) - has been
added; it contains two routines for data analysis:
simple_stats (S-Lang or Python help) and
simple_hist (S-Lang or Python help).
-
The check_ciao_caldb script has
been updated to check the existence of the CALDB in a
more intelligent way. Functionality is
unchanged.
|
|
24 Jul 2009
|
Two new science threads were posted this week:
|
|
17 Jul 2009
|
Two new science threads were posted this week:
|
|
07 Jul 2009
|
CALDB has been updated to v4.1.3.
Information on the release is available from the
CALDB
4.1.3 Release Notes and
How CALDB 4.1.3 Affects Your Analysis.
Download CALDB 4.1.3
|
|
25 Jun 2009
|
The merge_all script will produce incorrect
results if one (or more) of the observations was done with
an offset. For details and a workaround, refer to
the merge_all
bugs page.
|
|
12 Jun 2009
|
Download issue on Mac OS X 10.5.7 Intel
Multiple users have reported that they are unable to download
the CIAO tarfiles on Mac OS X Intel 10.5.7 from the Safari browser
(v3.2.3 and v4). Please try an alternate browser, e.g. Mozilla
Firefox, and contact Helpdesk if you continue to
have a problem.
|
|
01 Jun 2009
|
Small updates were made to the fullgarf
and merge_all scripts in the 01 Jun 2009 script
tarfile. Read about the changes and download the updated
package from the Scripts page.
|
|
05 May 2009
|
After acis_process_events is run
with apply_cti=no, the CTI_APP keyword is
correctly set to NNNNNNNNNN. Due to a problem in how the
CALDB files are looked up,
running acis_process_events on this file again
with apply_cti=yes does not
apply the CTI correction. The CTI_APP keyword will still
be set to NNNNNNNNNN.
Read the bug page
for workarounds to this problem.
|
|
20 Apr 2009
|
Download the CIAO 4.1.2 patch.
CIAO 4.1.2 includes several new CIAO tools and many
enhancements to Sherpa, the modeling and fitting
package. This patch includes a full installation of the
CIAO software for Solaris 10 (SunOS 5.10,
SPARC). Read the
release notes for detailed information.
|
|
27 Mar 2009
|
CALDB has been updated to v4.1.2.
Information on the release is available from the
CALDB
4.1.2 Release Notes and
How CALDB 4.1.2 Affects Your Analysis.
Download CALDB 4.1.2
|
|
13 Feb 2009
|
All of the CIAO Science Threads
have been reviewed and updated for CIAO 4.1.
The "S-Lang" section of the thread index was removed.
Threads which use Python and S-Lang are located in the
appropriate science categories of the index.
|
|
28 Jan 2009
|
New caveat: ACIS Event
Thresholds.
A number of ACIS observations have a non-standard event
threshold, which limits the useable energy range in the
analysis.
|
|
21 Jan 2009
|
CALDB 4.1.0 has been updated to CALDB 4.1.1.
Information on the release is available from
the
CALDB
4.1.1 Release Notes and
How CALDB 4.1.1 Affects Your Analysis.
Download CALDB 4.1.1
|
|
15 Jan 2009
|
Download the CIAO 4.1.1 patch.
The patch contains PIMMS data
files for Cycle 11 proposal planning.
|
|
30 Dec 2008
|
If you downloaded CALDB 4.1.0 before 2:00PM EST on 30
December 2008, the permissions are set incorrectly on
the acis/bkgrnd directory.
The owner of the installation must fix this in order for
the files to be accessible:
chmod 755 $CALDB/data/chandra/acis/bkgrnd
This has been corrected in the tarfiles, so downloads
after that date and time have the correct permissions.
|
|
15 Dec 2008
|
Download CIAO 4.1, the newest version
of the Chandra Interactive Analysis of Observations
software, released on 15 December 2008.
CIAO 4.1 features a complete, non-beta version of Sherpa,
the modeling and fitting
package. Read the
release notes for detailed information.
|
|
15 Dec 2008
|
Download CALDB 4.1,
which has been released for use with CIAO 4.1.
It is required for the software to run
correctly.
Information on the release is available from the CALDB
Release Notes and How CIAO
4.1 and CALDB 4.1 Affect Your Analysis.
|
![[CIAO Logo]](imgs/ciao_logo_navbar.gif){kind=logo}