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http://dx.doi.org/10.5139/JKSAS.2020.48.12.987

A Study on Satellite Alignment Measurements Accuracy Improvement  

Choi, Jung Su (Korea Aerospace Research Institute)
Kim, In-Gul (Chungnam National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.12, 2020 , pp. 987-995 More about this Journal
Abstract
Accurate alignment between high-performance payloads and attitude control sensors is essential factor to guarantee accurate attitude orientation and high pointing stability of the satellite. Space craft developers often use theodolite measurement system for satellite alignment during ground AIT(Assembly Integration and Test) phase. When measuring theodolite, errors may occur due to line of sight error, tilting axis error, vertical index error, and vertical axis error. In addition, errors that can occur during alignment measurements with multiple theodolites are analyzed through the alignment cube measurements test. Based on the alignment cube measurements test, a technical method that can improve the alignment measurement accuracy was suggested and it's measurements results satisfied the satellite design requirements.
Keywords
Satellite Alignment; Geo-kompsat 2; Theodolite; Auto-collimation;
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Times Cited By KSCI : 2  (Citation Analysis)
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