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  • Thermospheric Density Observations from APOD Satellites and Comparison with New Empirical Models

    Paper number

    IAC-22,B4,IP,31,x68221

    Author

    Dr. Guang Ming Chen, China, 1)Science and technology on aerospace flight dynamics laboratory, Beijing, China;2)Beijing aerospace control center, Beijing, China;

    Coauthor

    Mr. Xie Li, China, 1)Science and technology on aerospace flight dynamics laboratory, Beijing, China;2)Beijing aerospace control center, Beijing, China;

    Coauthor

    Prof. Hong Gao, China, National Space Science Center (NSSC), Chinese Academy of Sciences

    Coauthor

    Prof. Maosheng He, Germany

    Coauthor

    Mr. Zhengxu Pan, China, National Key Laboratory of Aerospace Flight Dynamics,Northwestern Polytechnical University,Xi'an

    Coauthor

    Dr. Shushi Liu, China, 1)Science and technology on aerospace flight dynamics laboratory, Beijing, China;2)Beijing aerospace control center, Beijing, China;

    Coauthor

    Mr. Haijun Man, China, 1)Science and technology on aerospace flight dynamics laboratory, Beijing, China;2)Beijing aerospace control center, Beijing, China;

    Year

    2022

    Abstract
    The Chinese APOD (Atmospheric density detection and Precise Orbit Determination) satellites, include one nano-satellite called APOD-A and three pico-satellites, were launched on September 20, 2015. One of the main purposes of the mission is to observe thermospheric density. The APOD-A satellite carries a pressure gauge density detector, which can perform in-situ detection of atmospheric density with high temporal resolution. The satellite also carries a high-precision GPS receiver to achieve high-precision orbit determination. Based on the high-precision orbit determination data, the average atmospheric density along the orbit can be retrieved, and the retrieved average atmospheric density can be used for on-orbit calibration of atmospheric density detector observations. The APOD satellite can observe the global thermospheric density at dawn and dusk. At present, it has accumulated high-level atmospheric density data for more than six years. These data provide an important data source for the study of high-level atmospheric density. The JB2008, MSIS2.0 and DTM2020 models are the latest thermospheric atmospheric models, and we used APOD data to compare the JB2008, MSIS2.0 and DTM2020 model results to assess the accuracy of these models.
    Abstract document

    IAC-22,B4,IP,31,x68221.brief.pdf

    Manuscript document

    IAC-22,B4,IP,31,x68221.pdf (🔒 authorized access only).

    To get the manuscript, please contact IAF Secretariat.