Deorbiting method for geostationary orbit communication satellite

Abstract

The invention discloses a deorbiting method for a geostationary orbit communication satellite, which is suitable for deorbiting operation of a GEO communication satellite, particularly considers the characteristics of the communication satellite, provides a targeted method, and meets the actual requirements of deorbiting operation. According to the deorbiting orbit requirement, a method combiningaverage quantity maneuver and correction quantity maneuver is provided, the operability is high, a control strategy is convenient to adjust, and the eccentricity ratio requirement is met while the orbit height requirement is met; propellant is consumed in a periodic relative air injection mode of the thruster in a cruise mode, the efficiency is high, and the influence on the posture is small. Meanwhile, according to the method, in the whole satellite deorbit control process, interference of uplink measurement and control on adjacent GEO satellites is avoided, and cruise visible measurement andcontrol time is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of on-orbit management at the end of life of a spacecraft, and in particular relates to an off-orbit method for geostationary orbit communication satellites. Background technique [0002] At present, there are dozens of communication satellites in orbit in my country, most of which are geostationary orbit (GEO) satellites, providing high-quality and reliable services for radio and television, broadband applications and other fields. With the widespread application of GEO communication satellites, more and more communication satellites in orbit are about to reach the end of their design life. The geostationary orbit position is a scarce basic space resource. According to international unified standards, it is necessary to transfer the satellite out of the geostationary orbit in a timely and accurate manner after the expiration of the satellite's life, and send it into the expected abandoned satellite orbit to...

AI Technical Summary

Problems solved by technology

[0008] For a long time, there is no unified method for the deorbiting of geostationary orbit communication satellites. Many satellites have failed in the deorbiting process or failed to deorbit successfully, which brings great risks to satellites in orbit or subsequent satellites to be launched; At the end of the satellite’s service life, the estimation of the remaining amount of general propellant is inaccurate or less, and there may be situations where deorbiting cannot be completed due to insufficient propellant; Deorbiting program for communication satellites to ensure successful deorbiting

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