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Update phase angle#19

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jorgemarpa merged 6 commits intoSSDataLab:mainfrom
altuson:STO_angle
Feb 24, 2026
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Update phase angle#19
jorgemarpa merged 6 commits intoSSDataLab:mainfrom
altuson:STO_angle

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@altuson altuson commented Feb 24, 2026

This PR updates the phase angle column in the output ephemeris.

Previous versions of tess-ephem use the true phase angle (column 43) from JPL Horizons. This new version uses the Sun-Target-Observer angle (column 24), which is close to but not exactly equal to the true phase angle. For a full description of these quantities, see Horizons documentation.

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this looks good to me

@jorgemarpa jorgemarpa merged commit ecbabb2 into SSDataLab:main Feb 24, 2026
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@altuson altuson deleted the STO_angle branch February 24, 2026 20:18
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