Ray tracing evaluation of a technique for correcting the refraction errors in satellite tracking data

Details Ray tracing evaluation of a technique for correcting the refraction errors in satellite tracking data Ray tracing evaluation of a technique for correcting the refraction errors in satellite tracking data

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apopt..17.3143g&link_type=abstract

Applied Optics, vol. 17, Oct. 1, 1978, p. 3143-3145.

Physics

Optics

3

Atmospheric Refraction, Laser Range Finders, Position Errors, Ray Tracing, Satellite Tracking, Atmospheric Effects, Rangefinding, Refractivity

Scientific paper

Errors may be introduced in satellite laser ranging data by atmospheric refractivity. Ray tracing data have indicated that horizontal refractivity gradients may introduce nearly 3-cm rms error when satellites are near 10-degree elevation. A correction formula to compensate for the horizontal gradients has been developed. Its accuracy is evaluated by comparing it to refractivity profiles. It is found that if both spherical and gradient correction formulas are employed in conjunction with meteorological measurements, a range resolution of one cm or less is feasible for satellite elevation angles above 10 degrees.

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