On some aspects of the albedo effect application to the ERS-1 satellite

Details On some aspects of the albedo effect application to the ERS-1 satellite On some aspects of the albedo effect application to the ERS-1 satellite

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993cemda..56..471v&link_type=abstract

Celestial Mechanics and Dynamical Astronomy (ISSN 0923-2958), vol. 56, no. 3, p. 471-490.

Physics

Optics

2

Albedo, Ers-1 (Esa Satellite), Orbital Mechanics, Perturbation, Satellite Orbits, Trajectory Analysis, Atmospheric Models, Atmospheric Optics, Optical Properties, Specular Reflection

Scientific paper

Some aspects of the perturbative influence of radiation reflected by the Earth's surface on the motion of an artificial satellite are discussed. We concentrate on consequences of the extreme models with anisotropic reflection on the Earth's surface (specular reflection, clouds with anisotropic phase function). The possible effects of the Lala et al. (1978) modification of the Earth's albedo nominal value are investigated. The role of the satellite surface optical properties is pointed out in the context of the albedo effect. All mentioned models are purely numerical. The message of the paper can be summarized as follows. It is very doubtful that the 10 exp -8 - 10 exp -9 m/sec per sec level is reached when determining the perturbing accelerations caused by the albedo effect in the case of the ERS-1 satellite, due to poorly defined optical characteristics of the Earth's atmosphere and the Earth's and the satellite's surface. In the general case, this albedo-effect uncertainty level is about 50 percent with respect to the averaged values, and probably as high as 100 percent with respect to the instantaneous values of the perturbing accelerations.

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