Orbit determination of the Comet Rendezvous/Asteroid Flyby mission - Post-rendezvous phasesOrbit determination during the post-rendezvous phases of the Comet Rendezvous/Asteroid Flyby mission is described. The orbit determination process is discussed, with emphasis placed on optical imaging of landmarks and Doppler tracking. Rotational dynamics are introduced for the cometary nucleus. State estimation errors are given for spacecraft trajectory prediction and cometary nucleus attitude prediction. Estimation errors are also given for parameters that describe the cometary nucleus such as moments of inertia and gravity harmonics. The orbit determination performance in support of science observations while in orbit about the nucleus is described.
Document ID
19890037922
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Miller, James K. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wood, Lincoln J. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Weeks, Connie J. (Loyola Marymount University Los Angeles, CA, United States)