Path: Missions/LunarMission
% Computes Apollo guidance coordinates
The origin coincides continuously with the current landing site
(the frame rotates with the moon); the XG-axis is vertical; the ZG-axis
lies in, or near, the plane containing the LM and the landing site and
points forward; and the YG-axis completes the right-hand triad.
Type ApolloGuidanceCoordinates for a demo.
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Form:
[rG,vG] = ApolloGuidanceCoordinates( xLF, rTLF )
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Inputs
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xLF (6,1) State vector
rTLF (3,1) Target position
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Outputs
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rG (3,1) Position in guidance coordinates
vG (3,1) Velocity in guidance coordinates
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Reference: Klumpp, A. R. "Apollo Guidance Navigation and Control,"
MIT Charles Stark Draper Laboratory, June 1971, R-695.
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AC: ACData/ACTConstants SC: SCData/sCTConstants Common: CommonData/Constants Common: CommonData/xSplashSmall Common: Database/Constant Common: General/DeleteCell Common: General/DispWithTitle Math: Linear/Cross Math: Linear/Mag Math: Linear/Unit
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