meetings - Space Flight Mechanics Committee

Natasha Bosanac, Purdue University; Kathleen Howell, Purdue University;
Ephraim Fischbach, Purdue University
Many binary star systems possess a significantly smaller companion, such as an exoplanet,
in orbit about the binary. The dynamical model for the motion of the exoplanet is derived
based on the circular restricted three-body problem, but extended to incorporate a threebody
interaction added to the gravitational potential function. This additional contribution is
assumed to depend inversely on the product of the distances between the three bodies.
Frequency analysis is used to explore the influence of this three-body interaction on
periodic and quasi-periodic orbits in the exterior region for a large mass ratio binary.
16:35 AAS Preliminary Simulation for Light Curves of Rocket Body in LEO
13-323 Hideaki Hinagawa, Kyushu University; Toshiya Hanada, Kyushu University
Space debris has become an inevitable problem for the future space exploration, and
spacecraft is suggested to capture and remove space debris. To fulfill this mission, you have
to know target’s attitude motion when installing a mitigation-related device. To support, we
developed a simulator of orbit, attitude, and light curve to see how an object behaves. This
paper presents preliminary research on a rocket body in LEO, and succeeded in estimating a
rocket body shape’s axes ratio, pole axis, rotation period using Fast Fourier Transform and
Amplitude Method. We are planning the real observation in the near
16:55 AAS Spacecraft explosion event characterization using correlated observations
13-315 Masahiko Uetsuhara, Kyushu University; Toshiya Hanada, Kyushu University;
Toshifumi Yanagisawa, Japan Aerospace Exploration Agency; Yukihito Kitazawa,
IHI Corporation
This paper aims to characterize a spacecraft explosion event using correlated observations.
Outcomes of the characterization measure will enable us to make current space situational
awareness accurate, and to predict realistic future space situations. An event to be
characterized in this paper is a breakup of the Titan 3C Transtage (1968-081E) exploded in
the geostationary region. Characteristics to be evaluated include delta-velocity given to each
fragment though the event, and a size distribution of the breakup fragments. This paper also
discusses how effective the evaluated characteristics will contribute to re-visiting
observation plans for the breakup fragments.
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23 rd AAS / AIAA Space Flight Mechanics Meeting