Solar radiation pressure perturbations for Earth satellites. 1: A complete theory including penumbra transitions

Details Solar radiation pressure perturbations for Earth satellites. 1: A complete theory including penumbra transitions Solar radiation pressure perturbations for Earth satellites. 1: A complete theory including penumbra transitions

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...280..295v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 280, no. 1, p. 295-312

Physics

Optics

16

Astronomical Models, Atmospheric Attenuation, Atmospheric Refraction, Atmospheric Scattering, Orbit Perturbation, Orbital Mechanics, Radiation Pressure, Satellite Orbits, Solar Radiation, Earth Atmosphere, Earth Surface, Geometrical Optics, Lageos (Satellite), Mathematical Models, Penumbras, Sunlight

Scientific paper

We have studied the perturbative effect of the force due to direct solar radiation pressure on the dynamics of artificial satellites in a more comprehensive way than has been done so far. We have included a general model for the atmospheric refraction and extinction and have computed the illumination of a satellite for any geometric arrangement between it, the Earth and the Sun. This allowed us to investigate in detail the transition between the full sunlight and the shadow. We have considered separately the influence of the atmospheric refraction (treated according to geometrical optics) and the various physical processes in the atmosphere (absorption and scattering), to conclude that in general the flux attenuation during penumbra is most easily interpreted as due to a compression of the solar disk when viewed from the satellite through the Earth's atmosphere. The eclipsing of the finite-size solar disk by the solid Earth plays a minor role, whereas the refraction in the Earth atmosphere's produces an extended tail in the radiation force. However, the magnitude and duration of this tail depends upon the atmospheric conditions over a limited region of the Earth's surface. Several consequences of the theory have been exemplified by computing the perturbing force during penumbra on the Laser Geodynamic Satellite (LAGEOS) and other satellites.

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