Stationary occultations from low Earth orbit

Details Stationary occultations from low Earth orbit Stationary occultations from low Earth orbit

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105..551p&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 687, p. 551-557.

Astronomy and Astrophysics

Astronomy

1

Earth Orbital Environments, Hubble Space Telescope, Lunar Occultation, Orbital Mechanics, Diffraction, Orbit Calculation, Scintillation, Signal To Noise Ratios, Stellar Magnitude

Scientific paper

The process of stationary lunar occultations is considered for observers in LEO. The orbit of the Hubble Space Telescope (HST) is used as a prototype. The noncoplanarity of the HST and lunar orbits disrupts many of the expected stationary events, and orbital drag complicates the prediction problem. In a typical year, the apparent speed of the lunar limb seen by the HST is slower than a typical ground-based event only about 0.7 percent of the time. The orbit prediction can be wrong by as much as 20 deg in 53 days, with most of the error lying in the plane of the orbit.

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