Grating Spectroscopy Threads

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Matching CIAO and CALDB Versions

CIAO 3.4 requires CALDB 3.3.0 or higher to operate properly.

CALDB 3.4.0 and higher should not be used unless you are running CIAO 3.4 or CIAO 4.0.

Are your versions mismatched? Time to update CIAO and CALDB!

News Previous Items

8 Sep 2008 [New]

CALDB 3.5.0 has been released for use with CIAO 3.4 and CIAO 4.0.

Information on the patch is available from the CALDB 3.5.0 Release Notes and How CALDB 3.5.0 Affects Your Analysis.

Download CALDB 3.5.0

23 Jun 2008

CALDB 3.4.5 has been released for use with CIAO 3.4 and CIAO 4.0.

Information on the patch is available from the CALDB 3.4.5 Release Notes and How CALDB 3.4.5 Affects Your Analysis.

Download CALDB 3.4.5

14 Dec 2007

The CIAO 4.0 software release is now available.

CIAO 4.0 is a full installation of the CIAO software, including ChIPS and Sherpa (Beta). Refer to the CIAO 4.0 website and release notes for full details.

14 Dec 2007

CALDB 3.4.2 has been released for use with CIAO 3.4 and CIAO 4.0.

Information on the patch is available from the CALDB 3.4.2 Release Notes and How CALDB 3.4.2 Affects Your Analysis.

Download CALDB 3.4.2

Matching CIAO and CALDB Versions

Grating Spectroscopy

General:

Problems with the Zero Order:

HETG/ACIS:

LETG/ACIS:

LETG/HRC-S:

LETG/HRC-I:

Combining Spectra & Fitting: