Density scale height and zonal wind speed deduced from 296 orbits of Intercosmos 10 rocket (1973-82B)

Details Density scale height and zonal wind speed deduced from 296 orbits of Intercosmos 10 rocket (1973-82B) Density scale height and zonal wind speed deduced from 296 orbits of Intercosmos 10 rocket (1973-82B)

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987p%26ss...35..161b&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 35, Feb. 1987, p. 161-183. SERC-sponsored research.

Physics

3

Earth Orbits, Orbit Calculation, Satellite Orbits, Upper Stage Rocket Engines, Wind Velocity Measurement, Zonal Flow (Meteorology), Aerodynamic Drag, Atmospheric Models, Diurnal Variations, Eccentric Orbits, Intercosmos Satellites, Orbital Elements, Radiation Pressure, Tesseral Harmonics

Scientific paper

Orbital parameters of the satellite Intercosmos 10 rocket (1973-82B) have been determined at 296 epochs using about 14,000 optical and radar observations during the 1439 days of its life. The orbit of 1973-82B was inclined at about 74.0 deg to the equator and it decayed on October 8, 1977. The orbital elements were found using the RAE orbit refinement program, the MACPROP version of Swinerd (1982), giving average orbital accuracies in perigee height and inclination of 110 m and 0.002 deg, respectively. The influence of aerodynamic drag on the motion of 1973-82B is considered. A model of the atmosphere is adopted that allows for oblateness and the diurnal variations. The observed values of eccentricity and inclination are modified by the removal of perturbations due to lunisolar attraction, solid earth and ocean tides, solar radiation pressure, zonal and low-order long-periodic tesseral harmonic perturbations, and changes due to precession. The resulting variations due to drag are analyzed to give values of density scale height and three values of the zonal rotation rate of the upper atmosphere at heights between 200 and 300 km.

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