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/ELFIN/A/Ephemeris/PT1S NASA NumericalData ELFIN A Ephemeris (State) CubeSat Position, Velocity, Attitude, Spin Rate, and Spin Phase, Level 1 (L1), 1 s Data https://doi.org/10.48322/wvrj-hh66 2025-12-04T13:29:10Z 2021-03-29T17:14:50Z Only known prior ReleaseDate of the metadata 2025-11-14T16:01:57Z 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 2025-12-04T13:29:10Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB The Electron Losses and Fields Investigation (ELFIN) Mission is a Space Weather Mission using three Scientific Instruments in a 3U+ CubeSat. The Instruments measure Wave and Particle Data. This Data Product is a Probe State File that contains CubeSat Position, Velocity, Spin Attitude, Spin Rate, and Spin Phase Data. Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF for providing the Data. Open Data for Scientific Use. Angelopoulos, Vassilis 2025-11-14T16:01:57Z Space Physics Data Facility spase://SMWG/Person/Vassilis.Angelopoulos PrincipalInvestigator spase://SMWG/Person/Robert.M.Candey MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact ELFIN Mission Overview Web Page, UCLA https://elfin.igpp.ucla.edu/about Electron Losses and Fields Investigation, ELFIN, Mission Overview Web Page, University of California, Los Angeles ELFIN Attitude Determination and Control Subsystem Web Page, UCLA https://elfin.igpp.ucla.edu/adcs ELFIN Attitude Determination and Control Subsystem, ADCS, Web Page, University of California, Los Angeles spase://VSPO/NumericalData/ELFIN/A/Ephemeris/PT1S 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/elfin/elfina/ephemeris Access to Data in CDF Format via ftp from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/elfin/elfina/ephemeris Access to Data in CDF Format via http from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ELA_L1_STATE&index=sp_phys ELA_L1_STATE Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb CDF None Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF for providing the Data. Open Data for Scientific Use. Please acknowledge the Data Providers and CDAWeb when using these Data. Calibrated spase://SMWG/Instrument/ELFIN/A/Ephemeris Ephemeris InstrumentStatus 2018-09-17T00:00:00.000 P8M PT1S Earth.Magnetosphere Earth.Magnetosphere.Polar Earth.NearSurface Earth.NearSurface.AuroralRegion Earth.NearSurface.EquatorialRegion Earth.NearSurface.Ionosphere Earth.NearSurface.PolarCap State Time, UTC ela_state_time State Time, UTC, in Seconds since January 1, 2000 The State Time is expressed in Unleaped Seconds PT1S s ELA State Time E12.2 LinearScale 2010-01-01T00:00:00.000000000 2030-01-01T00:00:00.999999999 9999-12-31T23:59:59.999999999 Temporal CubeSat Position Vector, Geocentric Equatorial Inertial Cartesian Coordinates Time Series defined by using: ELA_STATE_TIME ela_pos CubeSat Position Vector, Geocentric Equatorial Inertial, GEI, Cartesian Coordinates PT1S km 1.0e3>m Cartesian GEI TimeSeries F12.8 3 X, GEI 1 Y, GEI 2 Z, GEI 3 -1.0e+06 1.0e+06 NaN Vector Positional CubeSat Velocity Vector, Geocentric Equatorial Inertial Cartesian Coordinates Time Series defined by using: ELA_STATE_TIME ela_vel CubeSat Velocity Vector, Geocentric Equatorial Inertial, GEI, Cartesian Coordinates PT1S km/s 1.0e3>m/s Cartesian GEI TimeSeries F12.8 3 VX, GEI 1 VY, GEI 2 VZ, GEI 3 -1000.0 1000.0 NaN Vector Positional CubeSat Spin Axis Attitude, Right Ascension, Geocentric Equatorial Inertial Spherical Coordinates Time Series defined by using: ELA_STATE_TIME ela_spinras CubeSat Spin Axis Attitude, Right Ascension, Geocentric Equatorial Inertial, GEI, Spherical Coordinates PT1S ° 0.0174532925>rad Spherical GEI SpinRas F12.8 0.0 360.0 NaN DirectionAngle.AzimuthAngle Scalar Positional CubeSat Spin Axis Attitude, Declination, Geocentric Equatorial Inertial Spherical Coordinates Time Series defined by using: ELA_STATE_TIME ela_spindec CubeSat Spin Axis Attitude, Declination, Geocentric Equatorial Inertial, GEI, Spherical Coordinates PT1S ° 0.0174532925>rad Spherical GEI SpinDec F12.8 0.0 180.0 NaN DirectionAngle.ElevationAngle Scalar Positional CubeSat Spin Period Time Series defined by using: ELA_STATE_TIME ela_spinper CubeSat Spin Period, Regularized and Boxcar Averaged PT1S s SpinPer F12.8 0.0 30.0 NaN Scalar Other CubeSat Maneuver Status Code Time Series defined by using: ELA_STATE_TIME ela_man CubeSat Maneuver Status Code PT1S ManCode I8 LinearScale 0 4294967295 4294967295 Scalar Other CubeSat Spin Phase Time Series defined by using: ELA_STATE_TIME ela_spinphase CubeSat Spin Phase PT1S ° 0.0174532925>rad Spherical GEI SpinPhase F12.8 0.0 360.0 NaN DirectionAngle.AzimuthAngle Scalar Positional