@misc{Pi_2023, title={GPS Deduced ROTI Index, Standard Deviation of the Rate of Change of the Total Electron Content (TEC), World Maps and Movies, 15 min Data}, url={https://hpde.io/NASA/NumericalData/IGS/GPS_Receiver/ROTI/PT15M.html}, DOI={10.48322/V9PW-WD37}, abstractNote={The ROTI Index is the Standard Deviation of the Rate of Change of the Total Electron Content, TEC, during a 15 min Interval. The TEC Values are measured between a Global Positioning Satellite, GPS, and Ground Receiver Station.}, publisher={NASA Space Physics Data Facility}, author={Pi, Xiaoqing}, year={2023}, language={en} }