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针对船载星敏感器安装在航天测量船上而引起的测星数据如何进行蒙气差实时修正问题,在分析船载经纬仪目前使用的蒙气差修正方法和中国天文年历提供的蒙气差修正方法的修正精度的基础上,提出船载星敏感器测星数据的蒙气差实时修正方法,给出蒙气差常数R0和温度变差乘数A的改正量α的计算公式,解决了工程应用上的高精度和实时性问题;同时,在分析大气温度、大气压力对船载星敏感器测星数据蒙气差影响的基础上,提出工程应用中的气象数据采集与使用的具体方案。
In order to solve the problem of real-time correction of the differential calorific value caused by the satellite data caused by the installation of the shipborne satellite sensor on the spacecraft, this paper analyzes the method of correcting the differential caliper at present and the method of correcting the calf of the Chinese astronomical almanac Based on the correction accuracy of the spacecraft star sensor data, a method to correct the calorific value of the spacecraft star sensor is proposed. The formulas for calculating the correction amount α of the temperature difference multiplier A and the temperature difference R0 are given, On the basis of analyzing the influence of atmospheric temperature and atmospheric pressure on the satellite differential data of shipborne satellite sensors, a specific scheme for the collection and use of meteorological data in engineering applications is proposed.