Method and a system for launching satellites on non-coplanar orbits, making the use of gravitational assistance from the moon
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United States of America Patent
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May 9, 2000
Grant Date -
N/A
app pub date -
Dec 30, 1997
filing date -
Dec 31, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A first satellite is placed practically directly by a launcher on a first final orbit. A second satellite is placed on the same launcher is initially transferred to a highly elliptical waiting orbit whose semi-major axis points to intercept the torus formed by the sphere of influence of the moon on its orbit, and then during a maneuver at the perigee of the highly elliptical orbit, the second satellite is transferred to lunar transfer orbit. Changes in the perigee altitude and the inclination of an intermediate orbit on which the second satellite is to be found are obtained mainly by gravitational reaction in the sphere of influence of the moon, and during a last maneuver, the second satellite is placed on a final orbit having orbital parameter values that are quite different from those of the orbital parameters of the first final orbit.
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