Turn off MathJax
Article Contents
Error analysis of HASDM using SWARM satellite data[J]. Chinese Journal of Space Science. doi: 10.11728/cjss2025-0012
Citation: Error analysis of HASDM using SWARM satellite data[J]. Chinese Journal of Space Science. doi: 10.11728/cjss2025-0012

Error analysis of HASDM using SWARM satellite data

doi: 10.11728/cjss2025-0012
  • Received Date: 2025-01-09
  • Accepted Date: 2025-05-09
  • Rev Recd Date: 2025-04-25
  • Available Online: 2025-05-30
  • Based on the atmospheric thermospheric density data inverted by the accelerometers of the SWARM-B and SWARM-C satellites, the error characteristics of the HASDM model were comprehensively analyzed, covering the influence of multi-dimensional factors such as solar activity level, geomagnetic activity level, latitude, local time and altitude. The study found that HASDM showed good performance under high solar activity and enhanced geomagnetic activity conditions, with small errors and high stability, while it was easy to overestimate density under low solar activity and low geomagnetic activity levels; the latitude distribution showed that HASDM mainly showed an underestimation trend in the high latitudes of the North and South Poles, and an overestimation trend near the equator; the local time analysis showed that HASDM could accurately capture the peak and valley changes, but the overestimation phenomenon was more obvious in specific periods such as 3-5 local time and 19-21 local time; the altitude analysis showed that the orbit was elevated, the relative error was small, but the instability increased. The research results provide an important basis for further optimizing the performance of the HASDM model and improving its adaptability in complex space environments.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article Views(57) PDF Downloads(5) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return