Evaluation of Empirical Atmospheric Models Using Swarm-C Satellite Data

Swarm-C satellite, a new instrument for atmospheric study, has been the focus of many studies to evaluate its usage and accuracy. This paper takes the Swarm-C satellite as a research object to verify the Swarm-C accelerometer's inversion results. This paper uses the two-row orbital elements density inversion to verify the atmospheric density accuracy results of the Swarm-C satellite accelerometer. After the accuracy of the satellite data is verified, this paper conducts comparative verification and empirical atmospheric model evaluation experiments based on the Swarm-C accelerometer's inversion results. After comparing with the inversion results of the Swarm-C semi-major axis attenuation method, it is found that the atmospheric density obtained by inversion using the Swarm-C accelerometer is more dynamic and real-time. It shows that with more available data, the Swarm-C satellite could be a new high-quality instrument for related studies along with the well-established satellites. After evaluating the performance of the JB2008 and NRLMSISE-00 empirical atmospheric models using the Swarm-C accelerometer inversion results, it is found that the accuracy and real-time performance of the JB2008 model at the altitude where the Swarm-C satellite is located are better than the NRLMSISE-00 model.

Automated summary

This paper verifies the inversion results of the Swarm-C accelerometer and evaluates its accuracy in determining atmospheric density. The results show that the inversion results obtained from the Swarm-C accelerometer are more dynamic and real-time, making it a valuable instrument for related studies. Additionally, the performance of the JB2008 and NRLMSISE-00 empirical atmospheric models are compared and evaluated using the Swarm-C accelerometer inversion results, with the JB2008 model showing better accuracy and real-time performance at the altitude where the Swarm-C satellite is located.