Nodel Vector (`vecn`)

Not Reviewed
Equation / Last modified by Administrator on 2015/08/11 07:07
`vecn = `
Rating
ID
MichaelBartmess.Nodel Vector (`vecn`)
UUID
0872b031-e3a1-11e3-b7aa-bc764e2038f2

This equation computes the Nodal Vector, `vecn`, which points in the direction of the orbit's ascending node -- the point where the orbit crosses the equator going from South to North.  The inputs are the x and y components of the angular momentum vector, `vech`.  The Nodal Vector is in the Equatorial plane.

NodelVectorvecn-illustration.png

Notes

`vecZ` is the unit vector in the polar direction.