Chandra X-Ray Observatory
Last modified: 7 September 2018

Subspace / Data Subspace

A record of all filtering applied to a file (e.g. selection of a source region or a flaring interval) by the Data Model (DM). Having this recorded in a data file header allows subsequent tools to extract appropriate calibration information. The subspace also helps users recall how a particular file has been filtered.

All tools that use the DM library propogate the data subspace.

Last modified: 7 September 2018
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