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/Vega2/MISCHA/FLYBY/PT1M NASA NumericalData Vega 2 Magnetic Field Data (1 min), Halley Comet 2025-12-04T13:32:24Z 2020-07-07T21:15:50Z Only known prior ReleaseDate of the metadata 2025-12-04T13:32:24Z Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB This product contains 1-minute magnetic field data for intervals of the closest approach of the Vega 2 spacecraft to Halley comet. Magnetic field data are in SE coordinate system, while spacecraft positions are in cometocentric (solar) ecliptic coordinates, CSE. Magnetic field data are presented in spacecraft-centered solar ecliptic (SE) coordinate system as Bxse, Bzse, Byse: * Bxse is directed from the spacecraft to the Sun. * Bzse is directed along the Z axis of the Solar Ecliptic system (to ecliptic pole). * Byse completes the right handed set and B=sqrt(Br^2+By^2+Bz^2). CSE (CometoCentric ecliptic coordinate system) for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane. Use of these data in publications should be accompanied by acknowledgements of the National Space Science Data Center(NSSDC), Space Physics Data Facility(SPDF) and IZMIRAN at Moscow. spase://SMWG/Person/Valery.G.Petrov GeneralContact spase://SMWG/Person/Valery.A.Styazhkin DataProducer spase://SMWG/Person/Natalia.E.Papitashvili TechnicalContact spase://SMWG/Person/Jan.Merka MetadataContact spase://VHO/NumericalData/Vega2/MISCHA/FLYBY.PT1M spase://VSPO/NumericalData/Vega2/MISCHA/FLYBY/PT1M 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/zzz_old/vega_data_from_nssdc/mag/ HTTP access to Vega mission data at SPDF. HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/zzz_old/vega_data_from_nssdc/mag/ In CDF via HTTP from SPDF Text.ASCII ASCII spase://SMWG/Instrument/Vega2/MISCHA MagneticField Ephemeris 1986-03-08T07:20:30Z 1986-03-09T07:17:30Z PT1M Heliosphere.Inner Comet Year Column 1 Time of observation (year) Temporal Month Column 2 Time of observation (month of year) Temporal Day Column 3 Time of observation (day of month) Temporal Hour Column 4 Time of observation (hour of day) Temporal Minute Column 5 Time of observation (minute) Temporal Second Column 6 Time of observation (second) s Temporal Bx Column 7 Magnetic field X component nT 1e-9>T Cartesian SSE Component.I Average Magnetic By Column 8 Magnetic field By component nT 1e-9>T Cartesian SSE Component.J Average Magnetic Bz Column 9 Magnetic field Bz component nT 1e-9>T Cartesian SSE Component.K Average Magnetic B Column 10 Magnetic field magnitude, nT nT 1e-9>T 9999.9 Magnitude Average Magnetic X Column 11 X component of spacecraft position in CSE coordinates (CometoCentric ecliptic coordinate system) km 1e3>m Cartesian SSE Component.I Positional Yse Column 12 Y component of spacecraft position in CSE coordinates (CometoCentric ecliptic coordinate system) km 1e3>m Cartesian SSE Component.J Positional Zse Column 13 Z component of spacecraft position in CSE coordinates (CometoCentric ecliptic coordinate system) km 1e3>m Cartesian SSE Component.K Positional Dist Column 14 Distance between spacecraft and Halley comet, km km 1e3>m Positional