Mars physical parameters as determined from Mariner 9 observations of the natural satellites and Doppler tracking

Details Mars physical parameters as determined from Mariner 9 observations of the natural satellites and Doppler tracking Mars physical parameters as determined from Mariner 9 observations of the natural satellites and Doppler tracking

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974jgr....79.4837b&link_type=abstract

Journal of Geophysical Research, vol. 79, Nov. 10, 1974, p. 4837-4844.

Physics

8

Mariner 9 Space Probe, Mars (Planet), Natural Satellites, Planetary Gravitation, Planetary Rotation, Deimos, Doppler Navigation, Orbital Elements, Perturbation Theory, Phobos, Radio Probing, Satellite Observation, Spherical Harmonics

Scientific paper

Mariner 9 Doppler tracking data and television photographs of Deimos and Phobos were analyzed to determine the gravity field, mass, and spin-axis direction of Mars and the natural satellite orbits. The solutions agree with previously published results. Radio data consisted of an apoapsis state vector for each of revolutions 5-195 obtained from one-revolution fits of Doppler data. Optical data consisted of TV photographs of Phobos and Deimos taken between revolutions 25 and 221. A first-order analytical theory, extended to include dominant second-order resonance effects on the Mariner 9 orbit, was used to calculate the motion of the spacecraft, Deimos, and Phobos. The feasibility of combining radio and optical data in long-arc solutions for accurate determination of orbits and physical parameters is demonstrated. The analytical theory developed for the evolution of a highly eccentric orbit in shallow resonance is accurate to plus or minus 1 km in the apoapsis state vector of Mariner 9 over a period of 200 revolutions.

Affiliated with

Also associated with

No associations

Rating

Mars physical parameters as determined from Mariner 9 observations of the natural satellites and Doppler tracking does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mars physical parameters as determined from Mariner 9 observations of the natural satellites and Doppler tracking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mars physical parameters as determined from Mariner 9 observations of the natural satellites and Doppler tracking will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1764211