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Applicability Analysis of ECOM Solar Radiation Pressure Models in Precise Orbit Determination
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Binghong SONG1, Jianhua YANG1
Journal of Geodesy and Geodynamics | 2025, 45(3) : 290 - 296
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Journal of Geodesy and Geodynamics | 2025, 45(3): 290-296
Applicability Analysis of ECOM Solar Radiation Pressure Models in Precise Orbit Determination
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Binghong SONG1, Jianhua YANG1
Affiliations
  • 1 Lanzhou Urban Construction Design and Research Institute Co Ltd, 875 East-Nanbinhe Road, Lanzhou 730050, China
  • SONG Binghong, senior engineer, majors in GNSS data processing and its applications, E-mail:

About Author:

SONG Binghong, senior engineer, majors in GNSS data processing and its applications, E-mail:

Published: 2025-03-15 doi: 10.14075/j.jgg.2024.04.176
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The solar pressure perturbation, as the largest non-conservative force experienced by in-orbit navigation satellites, is an important error source for precise orbit determination. Currently, most solar radiation pressure models are established for global positioning system(GPS) satellites, and there is relatively little adaptability analysis of solar radiation pressure models for precise orbit determination accuracy of Beidou-3(BDS-3) satellites. We use observation data from the multi-GNSS experiment(MGEX) to conduct orbit determination experiments based on five solar radiation pressure models, including ECOM1-9, ECOM1-7, ECOM1-5, ECOM2, ECOMC. The results show that the applicability of solar radiation pressure model varies for satellites developed by different manufacturers. For satellites developed by China Academy of Space Technology(CAST), the ECOMC model exhibits optimal applicability in radial, tangential, and normal directions. For satellites developed by Shanghai Engineering Center for Microsatellites(SECM), the radial, tangential, and normal directions have the best accuracy for ECOM1-5, ECOMC, and ECOMC models, respectively. For 3D entirety, the ECOMC model is recommended for orbit determination of both CAST and SECM satellites. From the 24-hour prediction results, for CAST type satellites, the accuracy of ECOM1-9, ECOM1-7, ECOM1-5, ECOM2, and ECOMC models is 23.3 cm, 20.6 cm, 17.2 cm, 21.8 cm, and 10.4 cm, respectively. For SECM type satellites, the accuracy is 25.7 cm, 19.1 cm, 15.9 cm, 12.9 cm, and 11.9 cm, respectively.

GNSS  /  solar radiation pressure  /  geometric structure  /  orbit determination parameters
宋秉红, 杨建华. ECOM系列光压模型在精密定轨中的适用性分析. 大地测量与地球动力学, 2025 , 45 (3) : 290 -296 . DOI: 10.14075/j.jgg.2024.04.176
Binghong SONG, Jianhua YANG. Applicability Analysis of ECOM Solar Radiation Pressure Models in Precise Orbit Determination[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (3) : 290 -296 . DOI: 10.14075/j.jgg.2024.04.176
Year 2025 volume 45 Issue 3
25
9
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doi: 10.14075/j.jgg.2024.04.176
  • Receive Date:2024-04-14
  • Online Date:2026-10-30
  • Published:2025-03-15
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  • Received:2024-04-14
Affiliations
    1 Lanzhou Urban Construction Design and Research Institute Co Ltd, 875 East-Nanbinhe Road, Lanzhou 730050, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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属
Genus
种数
Number of
species
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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