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Last modified: 11 October 2018


Bugs: download_chandra_obsid

There are currently no known bugs.

Bugs fixed in CIAO 4.10

The following is a list of bugs that were fixed in the CIAO 4.10 software release.

Connection timed out

The CXC retired the FTP server in the summer of 2017. It was replaced with Old versions of the download_chandra_obsid script try to use the old URL, and will eventually fail with a time-out error message:

# download_chandra_obsid (version): ERROR [Errno 110] Connection timed out


The fix for this was introduced in the CIAO 4.9.3 (May 2017) scripts release. Users are encourage to update to the latest version.

Users who cannot upgrade to the latest version may use the mirror site functionality to override the Chandra archive FTP site URL. Users can supply the -m|--mirror flag

unix% download_chandra_obsid --mirror=

Or can set the CDA_MIRROR_SITE environment variable

(tcsh) setenv CDA_MIRROR_SITE

(bash) export CDA_MIRROR_SITE=