Design and ballistic analysis of the mission for long-term study of the asteroid Apophis by a nanosatellite with an electric rocket propulsion system
| Autor: | E. A. Sergaeva, Olga L. Starinova, A. Yu. Shornikov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
asteroid
010504 meteorology & atmospheric sciences Spacecraft propulsion design and ballistic characteristics business.industry motion control lcsh:Motor vehicles. Aeronautics. Astronautics nanosatellite 01 natural sciences Long term learning Asteroid trajectory Physics::Space Physics 0103 physical sciences Astrophysics::Earth and Planetary Astrophysics lcsh:TL1-4050 Aerospace engineering business 010303 astronomy & astrophysics mathematical model Geology 0105 earth and related environmental sciences |
| Zdroj: | Космические аппараты и технологии, Vol 4, Iss 3, Pp 161-170 (2020) |
| ISSN: | 2618-7957 |
| DOI: | 10.26732/j.st.2020.3.04 |
| Popis: | The paper considers non-spherical objects with low gravitational attraction, such as asteroids, satellites of the planet and comets. We considered possibility of a mission to small bodies of the solar system of irregular shape on the example of the asteroid Apophis. The authors of the article suggest using a nanoclass spacecraft with an electric rocket propulsion system for a long mission to study Apophis. The purpose of this work is to determine the necessary costs of the working body for all stages of the mission, which includes reaching the asteroid, forming and maintaining a given orbit relative to it. The gravity of the Earth, Sun, and asteroid is taken into account when modeling the controlled movement of the spacecraft. When a spacecraft is moving relative to an asteroid, its gravitational field is described as a superposition of the gravitational fields of two rotating massive points. In this paper, it is proposed to divide the mission into two sections for preliminary ballistic design. The first optimal speed heliocentric flight Earth-asteroid Apophis with the alignment of the speed of the spacecraft and the asteroid. The second is the movement in the vicinity of the asteroid, which includes the optimal speed maneuver for forming the working orbit and maintaining the working orbit for a given time. |
| Databáze: | OpenAIRE |
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