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tkfram and zzdynrot matrix order issue #552
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The ALE project is impacted by this. The project is going to spin to the current version of spiceypy (prior to this fix being applied). A new release of ALE will be made in September, 2023. That version will not be impacted by this fix. |
SpiceyPy was updated to 6.0 in environment.yml and tests pass, next ALE release (1.0), probably after the ALE sprint a few weeks from now, we will update the recipe on conda-forge as well. |
@Kelvinrr can this be closed? |
I had this sitting in a local branch and forgot to PR it in 💀 up now: conda-forge/ale-feedstock#58 |
A SpiceyPy user recently opened an issue (AndrewAnnex/SpiceyPy#473) to report that
tkfram
was returning a incorrectly transposed rotation matrix. I identified this issue to be due to the use of the direct c converted fortran spice functions and that thezzdynrot
was also likely effected, while other similar fortran functions (irfrot etc) were not effected. After looking into this further, both zzdynrot and tkfram were added via a pull request to support ALE in 2019 AndrewAnnex/SpiceyPy#301, so this bug has been lurking in the codebase for a while.I currently have a pull request AndrewAnnex/SpiceyPy#474 that includes the fixes, but this project should evaluate the degree to which they are impacted by this change.
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