Re: NASA requesting Stardust reentry observations

From: Tony Beresford (
Date: Tue Dec 27 2005 - 18:01:26 EST

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    At 08:33 28/12/05, Gerhard HOLTKAMP wrote:
    >The given links show maps of the trajectory etc. I would be interested in the
    >incoming hyperbolic state vector elements so I can do my own calculations for
    >the final day or two of the inward journey. Where do I find those?
    Both the Re-entry capsule , and the rest of the spacecraft are objects
    available from JPL Horizon system at
    This system has web, telnet and e-mail interfaces.
    The e-mail interface is the most flexible and biggest learning curve.
    However the web interface allows ra dec and distance from the geocentre
    so a little extra caculation gives geoecentric cartesian,
    if thats what you want, or just use   two vectors to calculate
    geocentric hyperbolic orbit.
    Tony Beresford
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