2.2.2 spase://NASA/NumericalData/Papitashvili/IP/ISEE3-IMP8/PT3600S ISEE 3 - IMP 8 Impact Parameters 2020-07-07T21:15:03Z ISEE 3 - IMP 8 - Earth impact parameters (IP). IP is the minimal distance by which a plasma element seen at one body misses being seen by a second body. Cf. http://ftpbrowser.gsfc.nasa.gov/impact_des.html spase://SMWG/Person/Natalia.E.Papitashvili GeneralContact spase://VSPO/NumericalData/P_IMPPARAMS_HDR_II spase://VSPO/NumericalData/Papitashvili/IP/ISEE3-IMP8/PT3600S spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPBrowser https://omniweb.sci.gsfc.nasa.gov/ftpbrowser/impact_ii.html FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/aaa_special-purpose-datasets/aaa_impact_parameters/imp_isee3/ Text Ephemeris 1978-08-16T00:00:00 1984-01-31T00:00:00 PT3600.00S Heliosphere.NearEarth