@misc{Scudder_2023, title={Polar HYDRA 55-s Key Parameters}, url={https://hpde.io/NASA/NumericalData/POLAR/HYDRA/PT55S.html}, DOI={10.48322/8KSP-P425}, abstractNote={Polar HYDRA 55-s key parameters, electron densities and average energies}, publisher={NASA Space Physics Data Facility}, author={Scudder, Jack D.}, year={2023}, language={en} }