非地球同步卫星相对于太阳的几何关系

给出确定非地球同步卫星轨道的日照边界点在天球上投影的位置、太阳光在卫星及其携带仪器各个平面上的投射角以及星载红外分光计内部冷黑体被太阳照射到的轨道部份和概率的计算公式。最后以极轨气象卫星上的红外分光计为例进行了计算。其结果可以提供给分光计某些部份的设计以及极轨气象卫星发射时间的选择作参考。

GEOMETRIC RELATIONS OF NON-GEOSYNCHRONOUS SATELLITE TO THE SUN

In this paper,formulae are given for the determination ofprojection of the critical points at which a nongeosynchronous satellite or-bit is just shone by the sun on a celestial sphere,the incident angles of thesunlight at all the planes of the satellite and the instruments on board,aswell as the orbit sections and the probabilities,with which the internal colderblackbody of a satellite-borne infrared spectrometer is irradiated by the sun.Finally,as an example,calculation has been made for an infrared spectro-meter on board a polar orbit meteorological satellite.The results may be ofreference value to the design of some parts of the spectrometer and to theselection of launching window for polar orbit meteorological satellites.