Add file splitting to imaging mode data #506
Merged
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This PR adds file splitting for imaging mode observations. File splitting was already implemented for imaging TSO and grism TSO observations, but it is also possible for other modes to have observations that are large enough to trigger file splitting. This has been seen in several WFSC commissioning programs.
These changes allow for file splitting in imaging data with sidereal tracking.
Test updates with imaging observations that are both over and under the splitting limit
Test with WFSS observations both over and under the limit.
Test TSO imaging mode to make sure these changes haven't caused any errors
Test TSO grism mode to make sure these changes haven't caused any errors
These changes will not affect non-sidereal observations, nor sidereal observations that contain non-sidereal targets (e.g. background asteroids). Implementing file splitting for those modes will be much more complicated and invasive, and at the moment is lower priority.