TY - GEN
T1 - Optimal configuration of a planet-finding mission consisting of a telescope and a constellation of occulters
AU - Kolemen, Egemen
AU - Kasdin, N. Jeremy
PY - 2007
Y1 - 2007
N2 - The optimal configuration of satellite formations consisting of a telescope and multiple occulters around Sun-Earth L2 Halo orbits is studied. Focusing on the Quasi-Halo orbits, which are of interest for occulter placement, the phase space around L2 is examined. Trajectory optimization of the occulter motion between imaging sessions of different stars is performed. This enables the transformation of the global optimization problem into a Time-Dependent Traveling Salesman Problem (TSP). First, the TSP is solved for a simpler formation consisting of a telescope and a single occulter. Using dynamical insight around L2, approximate initialization regions of the occulter formation are identified. Combining the initialization and the methods developed for single occulter formation, a solution to the full TSP is obtained, which will enable a trade-off study of multiple occulters in terms of cost and scientific achievement.
AB - The optimal configuration of satellite formations consisting of a telescope and multiple occulters around Sun-Earth L2 Halo orbits is studied. Focusing on the Quasi-Halo orbits, which are of interest for occulter placement, the phase space around L2 is examined. Trajectory optimization of the occulter motion between imaging sessions of different stars is performed. This enables the transformation of the global optimization problem into a Time-Dependent Traveling Salesman Problem (TSP). First, the TSP is solved for a simpler formation consisting of a telescope and a single occulter. Using dynamical insight around L2, approximate initialization regions of the occulter formation are identified. Combining the initialization and the methods developed for single occulter formation, a solution to the full TSP is obtained, which will enable a trade-off study of multiple occulters in terms of cost and scientific achievement.
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M3 - Conference contribution
AN - SCOPUS:55849102164
SN - 9780877035411
T3 - Advances in the Astronautical Sciences
SP - 1503
EP - 1524
BT - American Astronautical Society - Space Flight Mechanics 2007 - Advances in the Astronautical Sciences, Proceedings of the AAS/AIAA Space Flight Mechanics Meeting
T2 - 17th Annual Space Flight Mechanics Meeting
Y2 - 28 January 2007 through 1 February 2007
ER -