Aero-braking assisted ascending node plane changes using differential J2 precession
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United States of America Patent
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Oct 1, 2024
Grant Date -
Nov 9, 2023
app pub date -
May 5, 2023
filing date -
May 6, 2022
priority date (Note) -
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Abstract
A method of moving a spacecraft from an initial orbit to a final orbit includes providing a spacecraft with thrusters traveling in an initial orbit that has a first RAAN. Thrusters are activated to move the spacecraft into a transfer orbit having more eccentricity than the initial orbit. A RAAN of the transfer orbit changes over time toward a target RAAN. The spacecraft enters an aerobraking orbit wherein the spacecraft is exposed to increased atmospheric drag to reduce orbit energy and reduce an apoapsis radius. Thrusters may be activated to increase the periapsis radius of the aerobraking orbit and cause the spacecraft to move into the final orbit, the final orbit having a final RAAN different from the first RAAN.
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