Hello fellow orbinauts!
Today I was going through some of the old Apollo mission reports and come across this term which I can't seem to grasp its meaning:
Any help clearing this confusion would be greatly appreciated. :thumbup:
Today I was going through some of the old Apollo mission reports and come across this term which I can't seem to grasp its meaning:
My question is, if I'm looking down onto this plane that they are defining, what is north? It's obvious this plane is not aligned with the Earth Z+ axis which is geographic north, right?Space-fixed heading angle:
Angle of the projection of the inertial velocity vector onto the local body-centered, horizontal plane, measured positive eastward from north, deg
Any help clearing this confusion would be greatly appreciated. :thumbup:
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