Based on other satellites

Kale, Z. C., Mann, I. R., Waters, C. L., Vellante, M., Zhang, T. L., & Honary, F. (2009). Plasmaspheric dynamics resulting from the Hallowe'en 2003 geomagnetic storms. Journal of Geophysical Research: Space Physics, 114(A8). https://doi.org/10.1029/2009ja014194