Orbital element based interstellar flight launch opportunity searching method

Abstract

The invention relates to an orbital element based interstellar flight launch opportunity searching method, in particular relates to an interstellar flight detector launch opportunity searching and selecting method, and belongs to the field of aerospace technology. The method comprises the following steps of: firstly determining an optimal dual-impulse rendezvous opportunity of a target celestial body and a launch celestial body; establishing the corresponding relationship between ephemeris of the launch celestial body and the mean anomaly in launch; calculating the rendezvous time of the launch celestial body and the target celestial body by the ephemeris of the launch celestial body; acquiring the state of the target celestial body in rendezvous through the ephemeris of the target celestial body, and converting the state into the orbital element, so as to obtain the mean anomaly of the target celestial body corresponding to the preset rendezvous time; and if the mean anomaly is matched with the optimal mean anomaly, judging that the launch opportunity is the optimal launch opportunity of the area, otherwise, readjusting the date corresponding to the optimal launch mean anomaly. The orbital element based interstellar flight launch opportunity searching method provided by the invention has the advantages and effects that the interstellar flight optimal launch opportunity can be searched rapidly with less calculation quantity and high efficiency, meanwhile, the cycle property of the launch opportunity can be accurately recognized and the like.

Description

technical field [0001] The invention relates to an interstellar flight launch opportunity search method based on orbital numbers, in particular to a method for searching and selecting an interstellar flight probe launch opportunity, belonging to the technical field of aerospace. Background technique [0002] The search for launch opportunities is a key link in the design and planning of interstellar exploration missions. Among the developed methods of interplanetary flight probe launch opportunity search, prior art [1] (see Sergeyensky A.B., Yin N.H. Interplanetary Mission Design Handbook, Vol.1, Part 1: Earth to Venus Ballistic Mission Opportunities 1991-2005. Jet Propulsion Laboratory, Pasadena, CA, Nov 1983, JPL D: 82-43) proposed the Pork-chop graph method, that is, by giving the expected launch time period and arrival time period, solve the corresponding Lambert problem and draw the pork-chop Figure, and then guess a better initial value according to the pork-chop diag...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the existing search method cannot take into account the calculation efficiency and accuracy,

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