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Judgment Method for Successful Orbiting of LEO Elliptical Orbit Satellites Based on Propellant Budget

A technology of elliptical orbit and determination method, which is applied in calculation, instrumentation, electrical digital data processing, etc., can solve problems such as gaps in readability and operability of success criteria, high timeliness requirements, unfavorable rapid judgment, etc., to achieve The method is simple and efficient, with low loss and easy operation

Active Publication Date: 2018-12-21
BEIJING INST OF SPACECRAFT SYST ENG
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  • Description
  • Claims
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Problems solved by technology

This requires high timeliness, and it is usually necessary to make a judgment within a few minutes after the separation of the satellite and the rocket. However, there is currently no unified standard for the success criteria of the launch, and there are gaps in the readability and operability of the usual success criteria. , it is easy to be confused and make mistakes in parameter interpretation and criterion implementation, which is not conducive to quick judgment

Method used

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  • Judgment Method for Successful Orbiting of LEO Elliptical Orbit Satellites Based on Propellant Budget
  • Judgment Method for Successful Orbiting of LEO Elliptical Orbit Satellites Based on Propellant Budget
  • Judgment Method for Successful Orbiting of LEO Elliptical Orbit Satellites Based on Propellant Budget

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Embodiment Construction

[0040] Such as figure 1 Shown, the present invention is further described.

[0041] (1) Calculate the relationship between the semi-major axis adjustment and the propellant consumption under the constraint of the low-orbit near-circular orbit.

[0042] Orbit change velocity increment Δv under the constraint of low-orbit near-circular orbit a The relationship with the semi-major axis adjustment Δa is

[0043]

[0044] Where a is the initial semi-major axis of the satellite, and v is the average velocity.

[0045] Propellant ΔM required for orbit change a for

[0046]

[0047] Where M is the initial mass of the satellite, I is the specific impulse of the engine, and g is the acceleration due to gravity.

[0048] For low-orbit satellites, the amount of propellant generally carried is small relative to the mass of the satellite, and the propellant used for initial orbit adjustment only accounts for a part of it. Therefore, the propellant for initial orbit adjustment gen...

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Abstract

A propellant budge-based low orbit elliptic track satellite successful injection determining method is provided. Through acquisition of relationships between propellant waste and apogee, perigee, eccentricity ratio and inclination angle adjustment amount, an injection success determination formula containing the apogee, perigee, eccentricity ratio and inclination angle adjustment amount can be achieved via total propellant waste provided by satellite orbital transferring; primary orbital transferring propellant amount allowed by a satellite can be determined according to limitations of each party; the apogee, perigee, eccentricity ratio and inclination angle deviation value of the satellite can be determined after separation of the satellite and a rocket; and whether the satellite successfully enters an orbit is determined via the determination formula. An orbital maneuver theory and formula are employed to achieve an analytic calculation formula, so accuracy, rationality, simplicity and high efficiency can be achieved; easy operation is provided and the method is in particular suitable for quick determination of success carry launch; and basis and instruction are provided for implements of emergency measures of the satellite upon problems during the carrying launch.

Description

technical field [0001] The invention relates to a method for judging successful entry into orbit of a low-orbit elliptical orbit satellite based on a propellant budget, in particular to a method for calculating a successful criterion for launching a low-orbit elliptical orbit satellite into orbit by a carrier rocket. Background technique [0002] When the launch vehicle performs the launch mission, due to its own reasons, it may cause errors in orbit or even launch failure. There are two main consequences that may be caused by a failure of a launch vehicle during launch. One is that the mission fails completely, and the spacecraft falls or loses all functions; the other is that the spacecraft does not fall and enters a different orbit. In the case that the spacecraft does not directly fail to launch, depending on the situation, it is possible to use the propellant carried by the spacecraft itself to change orbit to the mission orbit, but some capabilities or life may be los...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG16Z99/00
Inventor 冯昊黄美丽赵峭周静高珊闫军于伟雪丹
Owner BEIJING INST OF SPACECRAFT SYST ENG
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