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/Helios2/Ephemeris/PT24H NASA NumericalData Helios 2 Daily Trajectory Data 2025-12-04T13:29:21Z 2021-03-11T18:39:11Z Only known prior ReleaseDate of the metadata 2025-12-04T13:29:21Z Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB This data set contains orbital parameters for Helios 2: Helios-Sun distance, heliographic longitude from the ascending node, heliographic latitude, ecliptical longitude from the mean equinox, ecliptical longitude from the Earth-Sun line, ecliptical latitude, Helios - Earth distance, and number of rotations of the Sun referred to Helios since launch. Please acknowledge the National Space Science Data Center(NSSDC). spase://SMWG/Person/Jan.Merka MetadataContact Readme file at SPDF https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/traj/day/helorb.txt spase://VSPO/NumericalData/P_HELIOS2_HDR_EPHEMERIS_24H spase://VSPO/NumericalData/Helios2/Ephemeris/PT24H 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/helios/helios2/traj/day/ Via ftp in ASCII from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/traj/day/ In CDF via HTTP from SPDF Text ASCII spase://SMWG/Instrument/Helios2/Ephemeris Ephemeris 1976-01-15T00:00:00.000Z 1980-03-04T00:00:00.000Z PT24H Heliosphere.Inner