- #1
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Hi all,
hopefully someone can help me out here:
I'm looking at the Gibbs' method for orbit determination, and I'm losing the conceptual picture in the vector calculations.
I have no problems seeing how D and N point in the W direction (PQW coordinate system), but I'll be damned if I can get a grip outside of simply swimming through the math why S: [(r2-r3)r1 + (r3-r1)r2 + (r1-r2)r3] points in the Q direction.
Anyone have any insights?
I'm reading Vallado Fundamentals of Astrodynamics and Applications section 7.5.1 if it helps.
hopefully someone can help me out here:
I'm looking at the Gibbs' method for orbit determination, and I'm losing the conceptual picture in the vector calculations.
I have no problems seeing how D and N point in the W direction (PQW coordinate system), but I'll be damned if I can get a grip outside of simply swimming through the math why S: [(r2-r3)r1 + (r3-r1)r2 + (r1-r2)r3] points in the Q direction.
Anyone have any insights?
I'm reading Vallado Fundamentals of Astrodynamics and Applications section 7.5.1 if it helps.