NSSC OpenIR  > 空间环境部
APOD mission status and preliminary results
Tang, Geshi1,2; Li, Xie2; Cao, Jianfeng2; Liu, Shushi2; Chen, Guangming2; Man, Haijun2; Zhang, Xiaomin3; Shi, Sihan3; Sun, Ji3; Li, Yongping4; Calabia, Andres1
Source PublicationScience China Earth Sciences
KeywordAtmospheric density Low Earth orbit (LEO) Precise orbit determination (POD)
AbstractOn September 20th, 2015, twenty satellites were successfully deployed into a near-polar circular orbit at 520 km altitude by the Chinese CZ-6 test rocket, which was launched from the TaiYuan Satellite Launch Center. Among these satellites, a set of 4 CubeSats conform the atmospheric density detection and precise orbit determination (APOD) mission, which is projected for atmospheric density estimation from in-situ detection and precise orbit products. The APOD satellites are manufactured by China Spacesat Co. Ltd. and the payload instruments include an atmospheric density detector (ADD), a dual-frequency dual-mode global navigation satellite system (GNSS) receiver (GPS and Beidou), a satellite laser ranging (SLR) reflector, and an S/X-band very long baseline interferometry (VLBI) beacon. In this paper, we compare the GNSS precise orbit products with co-located SLR observations, and the 3D orbit accuracy shows better than 10 cm RMS. These results reveal the great potential of the onboard micro-electro-mechanical system (MEMS) GNSS receiver. After calibrating ADD density estimates with precise orbit products, the accuracy of our density products can reach about 10% with respect to the background density. Density estimates from APOD are of a great importance for scientific studies on upper atmosphere variations and useful for model data assimilation. © 2019, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.
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Affiliation1.Nanjing University of Information Science & Technology (NUIST), Nanjing; 210044, China;
2.Aerospace Flight Dynamics Laboratory (AFDL), Beijing Aerospace Control Center (BACC), Beijing; 100094, China;
3.China Spacesat Co. Ltd., Beijing; 100094, China;
4.National Space Science Center (NSSC), Chinese Academy of Sciences, Beijing; 100190, China
Recommended Citation
GB/T 7714
Tang, Geshi,Li, Xie,Cao, Jianfeng,et al. APOD mission status and preliminary results[J]. Science China Earth Sciences,2019.
APA Tang, Geshi.,Li, Xie.,Cao, Jianfeng.,Liu, Shushi.,Chen, Guangming.,...&Calabia, Andres.(2019).APOD mission status and preliminary results.Science China Earth Sciences.
MLA Tang, Geshi,et al."APOD mission status and preliminary results".Science China Earth Sciences (2019).
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