2.2.1 spase://VWO/Granule/POLAR/EFI/S_C_GSM_Position/19990116 2012-02-28T00:00:00 spase://VWO/NumericalData/POLAR/EFI/S_C_GSM_Position 1999-01-16T00:00:00 1999-01-16T24:00:00 Data http://polarefi.ssl.berkeley.edu/PolarEFIArchive/1999/01/POL_Arch_001_19990116.POLAR_S_C_Position_GSM.v03.cdf 36894