量子卫星暗空间背景载荷测试时段仿真分析

Simulation of Candidate Time Intervals Suitable for QUESS Payload Calibration in Dark Space Background

量子卫星上的有些载荷器件对空间背景光较敏感。空间背景光来源主要有地球、月球等。量子卫星在轨运行期间,它与月亮、地球等天体相对位置的变化,使得量子卫星工作轨道上空间背景光分布是随时间变化的。考虑了主要空间背景光源的影响,对量子卫星暗空间背景载荷测试时段进行算例仿真、分析,为量子卫星顺利开展在轨测试和实验提供了技术支持。

Payload of QUESS is sensitive to space background light. During payload testing, the time intervals should be singled out beforehand in order to make a successful QUESS payload calibration. Background light is mainly due to the Earth, the Moon, and so forth. QUESS orbiting in space, its relative positions varies with respect to the positions of the Moon and the Earth. To prevent from pollutions of background light, some time intervals should be carefully singled out during the QUESS payload calibrations. Therefore, some time intervals are simulated suitable to make QUESS payload calibrations. It has shown that such a research has led to much successful QUESS payload calibration in-orbit, which is key to QUESS experiments in orbit.