Path: Interplanetary/OrbitCoord
% Convert ECI to Sun Earth rotating coordinates about the barycenter.
The coordinate frame is +x pointing at the Earth along
the Sun-Earth line. +z normal to the Sun-Earth (ecliptic) plane
and +y completing the set.
Computes the plane by looking at the sun vector at jD(k) and then 1 day
later. By default, "SunV1" is used to get the sun vector. If a second
argument is entered, the JPL ephemerides are used.
Type ECIToSunEarthRot for a demo.
Since version 11.
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Form:
m = ECIToSunEarthRot( jD, JPL )
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Inputs
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jD (1,:) Julian date (days)
JPL (1,1) Optional. Enter this input (any value) to use
the JPL ephemerides. Otherwise, SunV1 is used.
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Outputs
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m {:} Rotation matrices
z (3,:) Rotation axes
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Interplanetary: Ephemeris/PlanetPosJPL LunarMissions: LunarCoord/BarycenterEarthMoon SC: Ephem/SunV1 Common: Graphics/Plot3D Common: Time/JD2000 Math: Linear/Cross Math: Linear/Unit
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