2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/Voyager1/Ephemeris/P1D NASA NumericalData Voyager 1 Spacecraft Positions 2025-12-04T13:32:25Z 2020-07-07T21:15:51Z Only known prior ReleaseDate of the metadata 2025-08-05T13:12:54Z Added ObservedRegion(s). Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to value in Version tag. ZCB 2025-12-04T13:32:25Z Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB Voyager 1 spacecraft positions generated from data at HelioWeb (cohoweb.gsfc.nasa.gov/helios/heli.html) These data were obtained from running the program HELICOOR in the public directory NSSDCA::ANON_DIR:[ACTIVE.HELIO]. These data are based on predicted trajectories calculated with the GTDS code by the NSSDC Satellite Situation Center and converted to solar ecliptic and heliographic coordinates by the HELIOCOOR program. The HELICOOR code was written by R. Parthasarathy. The program GENTRJCON added the HILLON longitude. spase://SMWG/Person/Adam.Szabo MetadataContact spase://VHO/NumericalData/Voyager1/Ephemeris/P1D spase://VSPO/NumericalData/Voyager1/Ephemeris/P1D spase://SMWG/Repository/NASA/GSFC/VHO-VMO Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products VHO Repository https://vho.nasa.gov/mission/voyager/1/ephemeris/ VHO holdings of Voyager 1 ephemeris Text ASCII spase://SMWG/Repository/NASA/GSFC/SPDF Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/traj/ssc/ In CDF via FTP from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/voyager/voyager1/traj/ssc/ In CDF via HTTP from SPDF Text spase://SMWG/Repository/PDS/PPI Online Open PDS/PPI https://pds-ppi.igpp.ucla.edu/search/view/?id=pds://PPI/VG1-SS-POS-6-1DAY-V1.0 VG1-SS-POS-6-1DAY-V1.0 This collection is archived with NASA's Planetary Data System. En Text.ASCII NASA's Planetary Plasma Interactions (PPI) Node of the Planetary Data System (PDS) and the P.I. for the data. spase://SMWG/Instrument/Voyager1/Ephemeris Ephemeris 1977-09-09T00:00:00Z 2015-12-31T23:59:59Z P1D Heliosphere.Heliosheath Jupiter.Io Jupiter.Ganymede Jupiter.Europa Jupiter.Callisto Saturn.Rhea Saturn.Mimas Saturn.Tethys Saturn.Titan Saturn.Magnetosphere Saturn Jupiter.Magnetosphere Jupiter Heliosphere.Heliosheath Heliosphere.Outer Year Field 1 Year Temporal DOY Field 2 Day of Year Temporal Radial Distance Field 3 Spacecraft Radial Distance in AU AU 1.49598e11>m Spherical HGI Positional HGI Latitude of Spacecraft Field 4 Spacecraft latitude in the HGI system (degrees) degrees Spherical HGI Positional HG Longitude of Spacecraft Field 5 Spacecraft longitude in the HG system (degrees) degrees Spherical HG Positional HGI Longitude of Spacecraft Field 6 Spacecraft longitude in the HGI system (degrees) degrees Spherical HGI Positional