Physics
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sciam.234...58m&link_type=abstract
Scientific American, vol. 234, June 1976, p. 58-64, 68-74.
Physics
3
Earth-Mars Trajectories, Interplanetary Navigation, Space Communication, Spacecraft Tracking, Trajectory Optimization, Viking Mars Program, Chronometers, Doppler Effect, Ephemeris Time, Inertial Navigation, Planetary Gravitation, Spacecraft Maneuvers, Spacecraft Television, Tropospheric Waves
Scientific paper
Recent advances in spacecraft tracking, chronometry, ephemerides, and orbit and trajectory determinations are reviewed. Improvements in timekeeping are reviewed, as well as precision distance and range measurements; orbit determinations, trajectory-correction maneuvers, flight path optimization, and information provided by rotation of the tracking station with the earth's surface. Doppler and tropospheric wave propagation effects are dealt with. Nongravitational perturbations (solar radiation pressure, release of gases from the spacecraft, stochastic unmodeled accelerations and sequential estimation to cope with them), the effect of the target planet's gravitational field upon close approach, and navigation problems in the outer reaches of the solar system (TV data telemetered back for inertial navigation) are covered. By-products of the research include: refined data on the mass of planets, on planetary mass distributions, planet configurations, on physical properties of the atmospheres and ionospheres of planets, and opportunities for refined tests of gravitation and relativity theories and models.
No associations
LandOfFree
Navigation between the planets 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 Navigation between the planets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Navigation between the planets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1785178