OMNIWeb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center
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Interface to produce plots, listings or output files from OMNI 2

OMNI data full description
How to get data from command line

    Plot data List data Create file (file?)

*Select resolution
     Hourly averaged Daily averaged 27-day averaged Yearly averaged

Click HERE to get time spans for individual parameters.

*Enter start and stop dates (Use yyyyddd or yyyymmdd)
    Start      Stop     

* Select variables
Bartels Rotation Number
IMF Spacecraft ID
Plasma Spacecraft ID
# Fine Scale Points in IMF Avgs
# Fine Scale Points in Plasma Avgs
Magnetic field
IMF Magnitude Avg, nT
Magnitude, Avg IMF Vr, nT
Lat. of Avg. IMF, deg.
Long. of Avg. IMF, deg.
By, GSE, nT
Bz, GSE, nT
By, GSM, nT
Bz, GSM, nT
Sigma in IMF Magnitude Avg.
Sigma in IMF Vector Avg
Sigma Bx, nT
Sigma By, nT
Sigma Bz, nT
Proton Temperature, K
Proton Density, n/cc
Flow Speed, km/sec
Flow Longitude, deg.
Flow Latitude, deg.
Alpha/Proton Density Ratio
Sigma-Alpha/Proton Ratio
Derived Parameters
Flow Pressure, nPa
Ey - Electric Field, mV/m
Plasma Beta
Alfven Mach Number
Magnetosonic Mach Number
Proton Quazy-Invariant(QI)
Kp*10 Index
R Sunspot Number (new version)
Dst Index, nT
ap index, nT
Solar index F10.7
    ( sfu = 10-22W m-2 Hz-1)
AE Index, nT
AL Index, nT
AU Index, nT
Polar Cap (PCN) index from Thule
Lyman Alpha Solar Index, W/m^2
Proton Flux* > 1 MeV
Proton Flux* > 2 MeV
Proton Flux* > 4 MeV
Proton Flux* >10 MeV
Proton Flux* >30 MeV
Proton Flux* >60 MeV
Magnetospheric Flux Flag
    * 1/(cm**2-sec-ster)

*Advanced plot selections (optional)
Y-axis Scale: Y scale range (for only one selected parameter)
min value max value
Character size(0.5-2.0): Symbol Size(0.1-4.0):
Plot Symbol: Image size (pixels) X: Y:
To create PS and PDF best quality outputs go to CDAWeb

Additional sourses of the "OMNI like" data sets:
Hourly-resolution shifted to the Earth data sets from different sources
Wind and ACE shifted to the Earth (cross-normaized to Wind definitive) hourly plasma data


If you have any questions/comments about OMNIWEB system, contact:
Dr. Natalia Papitashvili, Space Physics Data Facility, Mail Code 672, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

NASA Official: Robert Candey (, Head of the Space Physics Data Facility