socetlinescankeywords modifications needed for Socet Set USGSAstrolinescanner sensor model

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Author Name: Elpitha Howington-Kraus (Elpitha Howington-Kraus)

Original Date: 2013-05-31
Original Assignee: Elpitha Howington-Kraus

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The isis3.4.3 version of socetlinescankeywords is not generating enough ephemeris points and quaternions to model HiRISE images in Socet Set adequately for bundle adjustment. Additional issues impacting HiRISE Socet Set processing are the precision of the USGSAstrolinescanner keywords values output by socetlinescankeywords, and the pixel-location of the center ephemeris time. Debugging of socetlinescankeywords and the USGSAstrolinescanner has taken place under Photogrammetry R&D, and we are now ready to commit the modified version of socetlinescamkeywords into ISIS for the next quarterly release.

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Original Redmine Comment
Author Name: Elpitha Howington-Kraus (Elpitha Howington-Kraus)
Original Date: 2013-06-21T17:27:08Z

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As of the posting of this mantis ticket, we have determined an issue with the spacecraft velocity computations using the ISIS Spice Class(see mantis ticket #1684) Until a solution to the velocity computations is in place, we are temporarily modifying socetlinescankeywords to compute velocity values from the spacecraft positions. Because of interpolation differences, these values will be close, but not exact to values using, for example, NAIF routine spkez. Once the Spice Class issues are resolved, socetlinescankeywords will use the Spice Class to determine spacecraft velocity.

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Original Redmine Comment
Author Name: Elpitha Howington-Kraus (Elpitha Howington-Kraus)
Original Date: 2013-06-25T18:29:18Z

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Note on finished_effort_hrs: Most of the debugging work was done under Randy's R&D project. The hours listed here are for final validation of the changes, and the work to get the program committed into isis