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/Combined/PT40.5S NASA NumericalData Helios 2 Merged Plasma and Magnetic Field https://doi.org/10.48322/2zgw-qh23 2025-12-04T13:29:20Z 2020-07-07T21:14:35Z Only known prior ReleaseDate of the metadata 2025-11-14T16:16:45Z 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 2025-12-04T13:29:20Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB Merged solar wind plasma and magnetic field measurements from the Helios 2 spacecraft. Variable time resolution (2-10 minutes) Calibrated science quality data. User will acknowledge the Helios plasma instrument PI Dr. Helmut Rosenbauer and the magnetometer PI Prof. Fritz M. Neubauer. Rosenbauer, Helmut R.; Neubauer, Fritz M. 2025-11-14T16:16:45Z Space Physics Data Facility spase://SMWG/Person/Helmut.R.Rosenbauer PrincipalInvestigator spase://SMWG/Person/Fritz.M.Neubauer PrincipalInvestigator spase://SMWG/Person/Rainer.Schwenn DataProducer spase://SMWG/Person/D.Aaron.Roberts DataProducer Max Planck Institute for Solar System Research Helios Project page http://www2.mps.mpg.de/de/projekte/helios/ A website describing the Helios mission and its instruments spase://VHO/NumericalData/Helios2/Combined/PT40.5S spase://VSPO/NumericalData/Helios2/Combined/PT40.5S 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 Download of Helios 2 merged plasma and magnetic field data https://vho.nasa.gov/mission/helios2/ Repository of the Helios 2 data Text ASCII Helios 2 Merged Plasma and Magnetic Field 1 spase://SMWG/Instrument/Helios2/E2 spase://SMWG/Instrument/Helios2/E1 spase://SMWG/Instrument/Helios2/Ephemeris Ephemeris MagneticField ThermalPlasma 1976-01-17T01:21:36Z 1980-03-08T17:43:50Z PT40.5S Heliosphere.Inner Fundamental cadence of 40.5 sec with numerous gaps Magnetic field Solar Wind Plasma Year Field 1 Year of the observation Temporal Day Field 2 Day of year of the observation Temporal DecimalHour Field 3 Decimal Hour of the observation Temporal Hour Field 4 Integer Hour of the observation Temporal Minute Field 5 Minute of the observation Temporal Second Field 6 Second of the observation Temporal RadDist Field 7 Heliocentric radial distance of the s/c from the Sun AU 1.495979e-11>m Positional EarthSunSCAng Field 8 Earth-Sun-S/C Angle degree 1.745329e-2rad Positional CarrLong Field 9 Carrington longitude of the s/c degree 1.745329e-2>rad Positional CarrLat Field 10 Carrington latitude of the s/c degree 1.745329e-2rad Positional HGILong Field 11 HGI Longitude of the s/c degree 1.745329e-2rad Spherical HGI Positional Br Field 12 Br magnetic field component in RTN coordinates. nT 1.0e-9>T Cartesian RTN Component.I Magnetic Bt Field 13 Bt magnetic field component in RTN coordinates. nT 1.0e-9>T Cartesian RTN Component.J Magnetic Bn Field 14 Bn magnetic field component in RTN coordinates. nT 1.0e-9>T Cartesian RTN Component.K Magnetic Vp1R Field 15 Proton velocity R component in RTN coordinates from the E1/I1A sensor These RTN coordinates assumed the spacecraft to be in the ecliptic km/s 1.0e3>m/s Cartesian RTN Proton Component.I Velocity Vp1T Field 16 Proton velocity T component in RTN coordinates from the E1/I1A sensor These RTN coordinates assumed the spacecraft to be in the ecliptic km/s 1.0e3>m/s Cartesian RTN Proton Component.J Velocity Vp1N Field 17 Proton velocity N component in RTN coordinates from the E1/I1A sensor These RTN coordinates assumed the spacecraft to be in the ecliptic km/s 1.0e3>m/s Cartesian RTN Proton Component.K Velocity CarrRot Field 18 Carrington rotation number of the s/c Positional Np1 Field 19 Proton number desnity from the E1/I1A sensor cm^-3 1.0e-6>m^-3 Proton Moment NumberDensity Vp1 Field 20 Proton speed (scalar) from the E1/I1A sensor km/s 1.0e3>m/s Proton Magnitude Velocity Tp1 Field 21 Proton scalar temperature from the E1/I1A sensor K Proton Scalar Temperature Vp1az Field 22 Proton velocity azimuth flow angle in SSE coordinates from the E1/I1A sensor deg 1.745329e-2>rad Spherical SSE Proton DirectionAngle.AzimuthAngle Velocity Vp1el Field 23 Proton velocity elevational flow angle in SSE coordinates from the E1/I1A sensor deg 1.745329e-2>rad Spherical SSE Proton DirectionAngle.ElevationAngle Velocity Bx Field 24 Bx magnetic field component in SSE coordinates. nT 1.0e-9>T Cartesian SSE Component.I Magnetic By Field 25 By magnetic field component in SSE coordinates. nT 1.0e-9>T Cartesian SSE Component.J Magnetic Bz Field 26 Bz magnetic field component in SSE coordinates. nT 1.0e-9>T Cartesian SSE Component.K Magnetic sBx Field 27 One standard deviation of Bx magnetic field component in SSE coordinates. nT 1.0e-9>T Cartesian SSE Component.I StandardDeviation Magnetic sBy Field 28 One standrd deviation of By magnetic field component in SSE coordinates. nT 1.0e-9>T Cartesian SSE Component.J StandardDeviation Magnetic sBz Field 29 One standard deviation of Bz magnetic field component in SSE coordinates. nT 1.0e-9>T Cartesian SSE Component.K StandardDeviation Magnetic Na1 Field 30 Alpha number desnity from the E1/I1A sensor cm^-3 1.0e-6>m^-3 AlphaParticle Moment NumberDensity Va1 Field 31 Alpha speed (scalar) from the E1/I1A sensor km/s 1.0e3>m/s AlphaParticle Magnitude Velocity Ta1 Field 32 Alpha scalar temperature from the E1/I1A sensor K AlphaParticle Scalar Temperature Np2 Field 33 Proton number desnity from the E1/I1B sensor cm^-3 1.0e-6>m^-3 Proton Moment NumberDensity Vp2 Field 34 Proton speed (scalar) from the E1/I1B sensor km/s 1.0e3>m/s Proton Magnitude Velocity