The orbit of 1972-05B in its final phase, with geophysical inferences

Details The orbit of 1972-05B in its final phase, with geophysical inferences The orbit of 1972-05B in its final phase, with geophysical inferences

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981p%26ss...29..579h&link_type=abstract

Planetary and Space Science, vol. 29, May 1981, p. 579-588.

Physics

8

Eccentric Orbits, Heos B Satellite, Orbital Elements, Polar Orbits, Satellite Orbits, Wind Velocity Measurement, Atmospheric Effects, Earth Rotation, Error Analysis, Orbital Mechanics, Scale Height, Solar Activity Effects, Upper Atmosphere, Wind Effects

Scientific paper

The polar orbit of HEOS 2 second-stage rocket, 1972-05B, has been determined daily in its final 16 days in orbit (including the day of decay, September 27, 1978) using the RAE orbit refinement program, PROP 6, with about 1360 observations. Eleven values of density scale height have been determined from the decrease in perigee height, with a 2% error. The rotation rate of the upper atmosphere was determined from the decrease in orbital inclination, i.e., a strong west-to-east zonal wind of 160 + or - 20 m/s, at a mean height of about 240 km. The local time was 01-02h, the solar activity was high, and the latitude of perigee moved steadily from 10 deg N to 67 deg S.

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