2.2.9 spase://NASA/NumericalData/Pioneer11/Ephemeris/PT1H Pioneer 11 Spacecraft Ephemeris, Cartesian Position and Velocity Vectors, Daily Data 2021-03-29T17:14:50Z This Data Collection consists of Daily Cartesian Position and Velocity Vectors derived from SEDR predict Data provided by the Pioneer Project to the Plasma Science Experiment Team. The Trajectory Data were derived from actual SEDR Files prior to mid-1988 which were extrapolated to the End of 1998. Position Resolution is approximately 100,000 km, more than adequate for Studies of the Heliosphere. Please acknowledge the Principal Investigator, Dr. Paul R. Gazis, and SPDF. spase://SMWG/Person/Paul.R.Gazis GeneralContact Readme File from NSSDC NMC https://nssdc.gsfc.nasa.gov/nmc/dataset/display.action?id=SPHE-00820 spase://VEPO/NumericalData/Pioneer11/Ephemeris/P1D spase://VSPO/NumericalData/Pioneer11/Ephemeris/PT1H spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer11/plasma/hour/ for Hourly Data via FTP HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer11/plasma/hour/ for Hourly Data via HTTP Text spase://SMWG/Instrument/Pioneer11/Ephemeris Ephemeris 1974-01-01T00:00:00 1998-12-31T00:00:00 PT1H Heliosphere.Outer