Sun-synchronous circular orbit satellite exposure factor calculation method and device and electronic equipment

Abstract

The invention provides a sun-synchronous circular orbit satellite exposure factor calculation method and device and electronic equipment, and belongs to the technical field of space. The method comprises: obtaining an equatorial vector of the sun under an equatorial coordinate system at a preset moment, obtaining a normal vector of a satellite orbital plane where the sun-synchronous circular orbit satellite is located in the equatorial coordinate system at the preset moment, wherein the equatorial vector is a unit vector pointing to the central point of the sun at the preset moment from the original point of the equatorial coordinate system; based on the normal vector and the equatorial vector, obtaining an included angle between the satellite orbital plane and the equatorial vector; and based on the included angle and a pre-acquired orbit semi-major axis of a running orbit of the sun-synchronous circular orbit satellite, obtaining a sun-receiving factor of the sun-synchronous circular orbit satellite. The method does not need to calculate the orbit forecast of the sun and the satellite, and does not need to calculate the moment when the satellite enters and exits from the earth shadow, thereby simplifying the calculation process of the sun-exposure factor of the sun-synchronous circular orbit satellite, shortening the calculation time, and reducing the requirements for designers.

Description

technical field [0001] The present application relates to the field of aerospace technology, in particular, to a method, device and electronic equipment for calculating the sun exposure factor of a sun-synchronous circular orbit satellite. Background technique [0002] Calculation and analysis of satellite insolation factor is an essential part of satellite orbit design, which provides a basis for the design of solar panels and on-board power supplies. The current sun exposure factor calculation method is to calculate the orbit based on the real satellite orbit and the position of the sun, and calculate the satellite sun exposure according to the ratio of each satellite entering and leaving the earth shadow (the earth's shadow, that is, the shadow cast by the earth itself on the atmosphere) factor. [0003] However, this method not only needs to calculate the orbit forecast of the sun and satellite based on information such as satellite orbit and sun position (same as the c...

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Problems solved by technology

[0004] This application provides a sun-synchronous circular orbit satellite sun exposure factor calculation method, device and electronic equipment to solve the complex calculation process of the sun-synchronous circular orbit satellite sun exposure factor calculation process in the prior art, the calculation takes a long time, and the requirements for designers are relatively high. high problem

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