2.3.2 spase://NASA/NumericalData/Helios1/MAGandPLS/PT1H Helios 1 hourly merged magnetic field and plasma data 2021-04-27T15:38:11Z This is an hourly resolution, merged magnetic field and plasma data set created at NSSDC for COHOWeb. Magnetic field vectors and plasma flow direction angles are given in RTN coordinates. Spacecraft position data are given in Heliographic inertial (HGI coordinates). Please acknowledge N.F. Ness (P.I.) and F. Mariani for magnetic field data and H. Rosenbauer (P.I.) and R. Schwenn for plasma data, and NSSDC or GSFC-SPDF spase://SMWG/Person/Norman.F.Ness PrincipalInvestigator spase://SMWG/Person/Helmut.R.Rosenbauer PrincipalInvestigator spase://SMWG/Person/Franco.Mariani CoInvestigator spase://SMWG/Person/Rainer.Schwenn CoInvestigator spase://SMWG/Person/Natalia.E.Papitashvili GeneralContact Readme file at SPDF https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/merged/he1mgd.txt spase://VHO/NumericalData/Helios1/MAGandPLS/PT1H spase://VSPO/NumericalData/Helios1/MAGandPLS/PT1H spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/helios/helios1/merged/ for annual files via ftp HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/merged/ In CDF via HTTP from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HELIOS1_COHO1HR_MERGED_MAG_PLASMA&index=sp_phys HELIOS1_COHO1HR_MERGED_MAG_PLASMA For CDAWeb subset,plot and list capabilities COHOWeb plots and lists https://omniweb.sci.gsfc.nasa.gov/coho/form/helios1.html Helios 1-specific page for plots and lists COHOweb top page https://omniweb.sci.gsfc.nasa.gov/coho/ Plots, lists, scatter plots, regressions, distributions, means, etc. Text 1.2 MB P1Y Please acknowledge N.F. Ness (P.I.) and F. Mariani for magnetic field data and H. Rosenbauer (P.I.) and R. Schwenn for plasma data, and NSSDC or GSFC-SPDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi HELIOS1_COHO1HR_MERGED_MAG_PLASMA Web Service to this product using the HAPI interface. CSV Please acknowledge N.F. Ness (P.I.) and F. Mariani for magnetic field data and H. Rosenbauer (P.I.) and R. Schwenn for plasma data, and NSSDC or GSFC-SPDF spase://SMWG/Instrument/Helios1/E1 spase://SMWG/Instrument/Helios1/E3 MagneticField ThermalPlasma 1974-12-12T00:00:00 1981-06-14T00:00:00 Plasma data end on day 364 of 1980. PT1H Heliosphere.Inner Year Column1 Four digit Year PT1H 999.9999 Temporal Day Column2 Decimal Day of Year PT1H 999.9999 Temporal Hour Column3 Hour PT1H 999.9999 Temporal Carrington Rotation Number Column4 Carrington Rotation Number seen by an Earth based observer at the start of the data interval PT1H 999.9999 Temporal H1 radial distance Column05 Heliocentric radial distance of Helios 1 in AU PT1H AU Positional H1 latitude Column06 Heliographic Inertial elevation angle of Helios 1 in deg PT1H deg Spherical HGI Positional H1 longitude Column07 Heliographic Inertial azimuthal angle of Helios 1 in deg PT1H deg Spherical HGI Positional ESS angle Column08 Earth-Sun-Spacecraft separation angle PT1H deg Positional Magnetic Field Vector, SSE Hourly averages of SSE (spacecraft-centric solar ecliptic) components of fine time scale magnetic field vectors PT1H nT Cartesian SSE 3 X,Y,Z components X component Component.I 1 Column09 Y component Component.J 2 Column10 Z component Component.K 3 Column11 99999.99 Vector Magnetic Magnetic Field Vector Hourly averages of RTN components of fine time scale magnetic field vectors PT1H nT Cartesian RTN 3 R,T,N components R component Component.I 1 Column12 T component Component.J 2 Column13 N component Component.K 3 Column14 99999.99 Vector Magnetic Magnetic Field Magnitude Column15 Hourly average of fine time scale magnetic field magnitudes PT1H nT 99999.99 Magnitude Magnetic Flow speed Column16 Hourly averaged solar wind plasma flow speed PT1H km/s 9999.9 Proton Average FlowSpeed Flow elevation angle Column17 Hourly averaged solar wind plasma flow elevation angle PT1H deg Spherical RTN 9999.9 Proton DirectionAngle.ElevationAngle FlowVelocity Flow azimuth angle Column18 Hourly averaged solar wind plasma flow azimuthal angle PT1H Spherical RTN 9999.9 Proton DirectionAngle.AzimuthAngle FlowVelocity Density Column19 Hourly averaged solar wind plasma density PT1H n/cc 999.9 Proton Average NumberDensity Temperature Column20 Hourly averaged solar wind plasma temperature (radial component) PT1H degK 9999999. Proton Average Temperature