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pro vyhledávání: '"Ryan Lebois"'
Publikováno v:
The Journal of the Astronautical Sciences. 60:51-86
The Interstellar Boundary Explorer (IBEX) spacecraft is currently in a highly elliptical orbit around Earth with a period near 3:1 resonance with the Moon. Its orbit is oriented so that apogee does not approach the Moon. Simulations show this orbit t
Publikováno v:
AIAA/AAS Astrodynamics Specialist Conference.
The Transiting Exoplanet Survey Satellite (TESS) will be injected into a highly eccentric Earth orbit and fly 3.5 phasing loops followed by a lunar flyby to enter a mission orbit with lunar 2:1 resonance. Through the phasing loops and mission orbit,
Autor:
Lisa Policastri, David J. McComas, M. Reno, Nathan A. Schwadron, Ryan Lebois, B. Hautamaki, Mark B. Tapley, John Carrico, M. Intelisano, Mike Loucks, R. Tyler, John Scherrer
Publikováno v:
Space Weather. 9
[1] NASA's Interstellar Boundary Explorer (IBEX) mission was recently maneuvered into a unique long-term stable Earth orbit, with apogee at ∼50 Earth radii (RE). The Moon's (∼65 RE) gravity disrupts most highly elliptical Earth orbits, leading to
Publikováno v:
AIAA/AAS Astrodynamics Specialist Conference.
This paper describes the orbit covariance analysis performed before and during IBEX operations to ensure that mission requirements are met. The authors describe how they calculated the orbit covariance during different mission phases, from launch thr