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Add IAU2000 selenoid#49

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aelanman merged 1 commit into
aelanman:mainfrom
lpsinger:iau2000-coordinates
May 11, 2026
Merged

Add IAU2000 selenoid#49
aelanman merged 1 commit into
aelanman:mainfrom
lpsinger:iau2000-coordinates

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@lpsinger

@lpsinger lpsinger commented May 5, 2026

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Fixes #3.

@aelanman

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Thanks for writing this @lpsinger ! It looks like the tests aren't passing to required tolerances. Once that's resolved, we can merge it in. It seems that #50 also relies on this?

@lpsinger

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Thanks for writing this @lpsinger ! It looks like the tests aren't passing to required tolerances. Once that's resolved, we can merge it in. It seems that #50 also relies on this?

I wonder why that would be. Did adding a new selenoid change what the default is?

@lpsinger lpsinger force-pushed the iau2000-coordinates branch from fd88610 to 092252b Compare May 11, 2026 19:13
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Tests should be passing now.

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Looks good! I've made a note that the SPHERE selenoid should probably be removed in the future, and IAU2000 made the default.

Comment thread lunarsky/moon.py


class SPHERESelenodeticRepresentation(BaseGeodeticRepresentation):
"""Lunar ellipsoid as a sphere

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I'm thinking we should deprecate this one, since the radius's source isn't documented and it's mostly equivalent to the IAU2000 definition (just with a radius 300 m smaller).

I'll make an issue to do that

@aelanman aelanman merged commit 5f861d2 into aelanman:main May 11, 2026
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@lpsinger lpsinger deleted the iau2000-coordinates branch May 11, 2026 21:24
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Selenodetic coordinates relative to an iAU recommended ellipsoid

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