Long-lifetime Martian orbit selection using a time-dependent model of the Martian atmosphereA mathematical model of the time-dependent Martian atmosphere has been developed in order to accurately calculate the effects of aerodynamic drag on a low altitude satellite. The time-dependent properties of the model include solar activity effects, dust storm effects, seasonal and diurnal variations, and annual motion effects. Position effects are accounted for through Martian latitude and longitude. Expected values of mass density, temperature, scale height, and the estimated standard deviation of the mass density are provided. An example of the use of the model in selecting an orbit for the Mars Geochemical/Climatology Orbiter is given.
Document ID
19840058574
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Culp, R. D. (Colorado Univ. Boulder, CO, United States)
Stewart, A. I. (Colorado Univ. Boulder, CO, United States)
Chow, C.-C. (Colorado, University Boulder, CO, United States)
Uphoff, C. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)