2.2.1 spase://VWO/Granule/POLAR/EFI/S_C_GEI_Position/20011231 2012-02-28T00:00:00 spase://VWO/NumericalData/POLAR/EFI/S_C_GEI_Position 2001-12-31T00:00:00 2001-12-31T24:00:00 Data http://polarefi.ssl.berkeley.edu/PolarEFIArchive/2001/12/POL_Arch_001_20011231.POLAR_S_C_Position_GEI.v03.cdf 36894