Near-Earth Heliospheric Data, OMNI, Definitive Multispacecraft Interplanetary Parameters Data, 5 min averaged
Additional information for all parameters are available from OMNI Data Documentation: https://omniweb..sci.gsfc.nasa.gov/html/HROdocum.html
New data may be accesible via the Space Physics Data Facility, SPDF, OMNIWeb Service: https://omniweb.sci.gsfc.nasa.gov/ow_min.html
The Modified (Level-3) High Resolution OMNI data files are made in the same format as the OMNI files based on SWE Key Parameter data. There are a few differences between old and new high resolution OMNI data sets:
Modifications:
Version:2.3.1
Near-Earth Heliospheric Data, OMNI, Definitive Multispacecraft Interplanetary Parameters Data, 5 min averaged
Additional information for all parameters are available from OMNI Data Documentation: https://omniweb..sci.gsfc.nasa.gov/html/HROdocum.html
New data may be accesible via the Space Physics Data Facility, SPDF, OMNIWeb Service: https://omniweb.sci.gsfc.nasa.gov/ow_min.html
The Modified (Level-3) High Resolution OMNI data files are made in the same format as the OMNI files based on SWE Key Parameter data. There are a few differences between old and new high resolution OMNI data sets:
Modifications:
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Joseph.H.King |
| 2. | PrincipalInvestigator | spase://SMWG/Person/Natalia.E.Papitashvili |
| 3. | MetadataContact | spase://SMWG/Person/Robert.M.Candey |
| 4. | MetadataContact | spase://SMWG/Person/Lee.Frost.Bargatze |
OMNI Data Documnetation for 1 min and 5 min solar wind data sets at the Earth's bow shock nose
Goddard Space Flight Center, GSFC, Space Physics Data Facility, SPDF, OMNIWeb Service. Additional data access options for high resolution (1 min and 5 min) OMNI solar wind magnetic field and plasma data at Earth's bow shock nose, geomagnetic activity indices, and energetic proton fluxes (5 min data only).
Release Notes: News for High Resolution OMNI data
Access to Data in CDF Format via ftp from SPDF
Access to Data in CDF Format via http from SPDF
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Epoch Time Tags
Four Digit Year
Decimal Day of Year, January 1 is Day 1
Decimal Hour of Day
Decimal Minute of Hour
OMNI Spacecraft ID, code for the source of the data used to calculate the time-shifted interplanetary magnetic field, IMF, values, see the OMNI documentation link for a list of the Spacecraft ID codes
OMNI Spacecraft ID, code for the source of the data used to calculate the time-shifted interplanetary plasma, IP, values, see the OMNI documentation link for a list of the Spacecraft ID codes
Number of fine time scale observations per Interplanetary Magnetic Field, IMF, Average
Number of fine time scale observations per Interplanetary Plasma, IP, Average
Percent of interpolated Solar Wind Observations. The percentage of the points contributing to the 5 min magnetic field averages whose phase front normal, PFN, was interpolated because neither the MVAB-0 nor Cross Product shift techniques yielded a PFN that satisfied its respective tests.
Solar Wind Propagation Time Shift
Solar Wind Propagation Time Shift, Root Mean Square, RMS
Time between Observations
Interplanetary Magnetic Field, B, Vector, Average Magnitude
Interplanetary Magnetic Field, Bx-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Interplanetary Magnetic Field, By-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Interplanetary Magnetic Field, Bz-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Interplanetary Magnetic Field, By-component, Geocentric Solar Magnetospheric, GSM, Cartesian Coordinates, determined from post-shift values components
Interplanetary Magnetic Field, Bz-component, Geocentric Solar Magnetospheric, GSM, Cartesian Coordinates, determined from post-shift values components
Interplanetary Magnetic Field Vector Magnitude, B, Root Mean Square, RMS, Standard Deviation
Interplanetary Magnetic Field Vector, B, Root Mean Square, RMS, Standard Deviation
Solar Wind Flow Speed, V
Solar Wind Velocity, Vx-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Solar Wind Velocity, Vy-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Solar Wind Velocity, Vz-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Solar Wind Proton Number Density, Np
Solar Wind Plasma Temperature, T
Solar Wind Alpha Particle to Proton Number Density Ratio, Na/Np
Solar Wind Flow Dynamic Pressure, p
Solar Wind Motional Electric Field, E, equal to -(Vx (in km/s) Bz (in nT))/1000
Solar Plasma Beta, β, Ratio of the plasma pressure over the magnetic field pressure
Solar Wind Alfvén Mach Number, Ma, Ratio of the Flow Speed over the Alfvén Speed
Solar Wind Magnetosonic Mach Number, Ms, Ratio of the Flow Speed over the square root of the sum of the Gas Dynamic Sound Speed squared and the Alfvén Speed squared
Spacecraft Position, x-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Spacecraft Position, y-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Spacecraft Position, z-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Bow Shock Nose Position, x-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Bow Shock Nose Position, y-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
Bow Shock Nose Position, z-component, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates
AE Index, from the World Data Center, WDC, Kyoto, the index values are final for the time interval from 1988-01-01 to 1988-06-30 are provisional for the time interval from 1990-01-01 to 2018-02-28
AL Index, from the World Data Center, WDC, Kyoto, the index values are final for the time interval from 1988-01-01 to 1988-06-30 are provisional for the time interval from 1990-01-01 to 2018-02-28
AU Index, from the World Data Center, WDC, Kyoto, the index values are final for the time interval from 1988-01-01 to 1988-06-30 are provisional for the time interval from 1990-01-01 to 2018-02-28
SYM D Index, from World Data Center, WDC, Kyoto for the time interval from 1981-01-01
SYM H Index, from World Data Center, WDC, Kyoto for the time interval from 1981-01-01
ASY D Index, from World Data Center, WDC, Kyoto for the time interval from 1981-01-01
ASY H Index, from World Data Center, WDC, Kyoto for the time interval from 1981-01-01
Solar Wind Proton Flux, Energies greater than 10 MeV
Solar Wind Proton Flux, Energies greater than 30 MeV
Solar Wind Proton Flux, Energies greater than 60 MeV