Re: Perifocal conversion to geocentric

"ubermenchster" <ubermenchster@xxxxxxxxx> wrote in message
news:1164404876.895234.99990@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hey all,

I'm working on a project in matlab, and now am trying to plot an orbit
for a satellite. The problem is, now I have everything in terms of the

perifocal frame (The perifocal frame is the frame of reference for the
satellite where the apse line is the x-axis and passes through the
periapse, and lies compeltely flat i.e. there is no z-axis). This is
nice, as I have the velocity at perigee at perigee. The problem is, I
need this velocity as perigee in cartesian coordinates.

The perifocal frame is also Cartesian. I think you're
looking for a coordinate transform to some other
Cartesian frame.

You might want to get hold of the book "Fundamentals
of Astrodynamics" by Bate, Mueller, and White", which
has a chapter on this. It's not an expensive book.


.

Relevant Pages

  • Converting from perifocal velocities to cartesian coordinates
    ... perifocal frame (The perifocal frame is the frame of reference for the ... satellite where the apse line is the x-axis and passes through the ... as I have the velocity at perigee at perigee. ... need this velocity as perigee in cartesian coordinates. ...
    (sci.math)
  • Perifocal conversion to geocentric
    ... perifocal frame (The perifocal frame is the frame of reference for the ... satellite where the apse line is the x-axis and passes through the ... as I have the velocity at perigee at perigee. ... need this velocity as perigee in cartesian coordinates. ...
    (sci.astro)
  • Re: Perifocal conversion to geocentric
    ... perifocal frame (The perifocal frame is the frame of reference for the ... as I have the velocity at perigee at perigee. ... The perifocal frame is also Cartesian. ... and eccentricities of both orbits. ...
    (sci.astro)