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/OGO4/RVM/PT1S NASA NumericalData OGO 4 Magnetic Survey, Rubidium Vapor Magnetometer data 2025-12-04T13:30:14Z 2020-07-07T21:15:00Z Only known prior ReleaseDate of the metadata 2025-11-14T16:03:09Z Added PublicationInfo. Added ResourceType and NamingAuthority. 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 updated value in Version tag. ZCB 2025-12-04T13:30:14Z Added MetadataRightsList. Updated to 2.7.1. ZCB The OGO-4 Rubidium Vapor Magnetometer data files give the spacecraft position in ECEF coordinates and the magnetic field magnitude at 1 s resolution. National Aeronautics and Space Administration; Dr. Nelson W. Spencer; Dr. Robert F. Fellows; Dr. Robert A. Langel, III; Dr. Joseph C. Cain; Technical University of Denmark National Space Institute Cain, Joseph C.; Langel III, Robert A. 2025-11-14T16:03:09Z University of California, Los Angeles spase://SMWG/Person/Joseph.C.Cain PrincipalInvestigator spase://SMWG/Person/Robert.A.Langel.III CoInvestigator spase://SMWG/Person/James.M.Weygand MetadataContact spase://VMO/NumericalData/OGO4 spase://VSPO/NumericalData/OGO4/RVM/PT1S spase://SMWG/Repository/UCLA/OGO4 Online Open Virtual Magnetospheric Observatory http://vmo.igpp.ucla.edu/data1/OGO/OGO4/ OGO-4 magnetic survey, rubidium vapor magnetometer data. Text Technical University of Denmark National Space Institute Calibrated OGO-4 magnetic survey Rubidium Vapor Magnetometer data Calibrated spase://SMWG/Instrument/OGO4/RVM MagneticField 1967-07-29T06:22:13Z 1969-01-19T12:16:32Z PT1S Earth.Magnetosphere Earth.NearSurface Universal Time Time Universal time columns from left to right are: day (MJD2000) and UT seconds of the day. PT1S 2 Universal Time expressed using day (MJD2000:fractions of days since January 1st 2000 at 00:00:00) and UT seconds of the day representation MJD2000 Day 1 Column_1 Seconds of the Day 2 Second Temporal OGO-4 Spacecraft Position Vector in Earth-Centered, Earth-Fixed (ECEF) coordinate system Position Vectors Location of the spacecraft in ECEF coordinates in units of kilometers and degrees. PT1S Spherical ECEF 3 Radius Component.I 1 r km Theta Component.J 2 theta degrees Phi Component.K 3 Phi degrees Positional Rubidium Vapor Magnetometer Magnitude Magnetic Field Magnitude Magnetic field magnitude for OGO-4 Rubidium Vapor Magnetometer in units of nT. PT1S nT Magnitude Magnetic