Method for selecting net capture load launching window based on waste satellite attitude nutation characteristics

Abstract

The invention relates to a method for selecting a net capture load launching window based on waste satellite attitude nutation characteristics, and belongs to the technical field of satellite net capture of waste satellites. The method comprises the steps of: 1, extracting a maximum nutation angle theta max, a minimum nutation angle theta min and a nutation period T; 2, acquiring a net capture load launching moment tint and a capture target moment tinf; calculating the time width Tnet according to the formula that Tnet=tinf-tint; 3, setting an adaptive nutation angle threshold theta net directly launched by a net capture load non-selection window; 4, calculating the time width T theta=t theta s-t theta j when the nutation angle theta is less than or equal to theta net in a single period; and 5, determining the satisfactory conditions of time width delta T of a net capturing load launching window, the launching moment tint and the nutation angle theta during launching; according to thewaste satellite attitude nutation rule, the net capture load nutation angle adaptive capacity and the time width of the net capturing load from the launching moment to capturing, the invention provides a launching window selection method, and reliable capturing of the large-attitude nutation waste satellite is achieved.

Description

technical field [0001] The invention belongs to the technical field of satellite net capture of abandoned satellites, and relates to a method for selecting a net capture load launch window based on the attitude and nutation characteristics of abandoned satellites. Background technique [0002] It is a safe and effective way to clean up the orbital environment by using the net capture payload to capture abandoned satellites and drag them to the graveyard orbit. The in-orbit attitude of abandoned satellites generally rotates around its maximum inertia axis and is accompanied by different degrees of attitude nutation, and the nutation angle changes periodically, and there is a maximum nutation angle and a minimum nutation angle. The attitude nutation of the abandoned satellite makes the large-scale accessories of the body, such as the position of the end of the solar panel, constantly change in space. [0003] According to public information, at present, the net capture payloa...

AI Technical Summary

Problems solved by technology

This direct launch method can achieve reliable capture for abandoned satellites with stable attitude or small attitude nutation. At the end of the size attachment, it will wind the net body due to its nutation motion, causing the net configuration to be disordered and resulting in net capture failure

In addition, due to engineering constraints, the size of the net capture payload cannot be infinitely large, so the net capture payload using the direct launch method must have a certain range of nutation angle capture, and the direct launch method is used for abandoned satellites with large attitude nutation is impossible to capture

Therefore, it is necessary to select the launch window based on parameters such as the attitude nutation law of abandoned satellites, the adaptability of the net capture payload to the nutation angle, and the time width of the net capture payload from launch to capture, so as to solve the problem that direct launch of the net capture payload cannot achieve large attitude nutation abandonment The Problem of Reliable Acquisition of Satellites

[0004] At present, there is no explanation or report on related technologies similar to the present invention, and similar domestic materials have not been collected yet.

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