OMNIWeb Data Explorer - Near-Earth Heliosphere Data - SPDF - Goddard Space Flight Center

Interface to produce averages, standard deviations and, if desired, distribution functions.

This page provides the ability to produce averages, standard deviations and distribution functions for any one of the High Resolution OMNI parameters listed below, only for times when the value of this parameter and/or other parameters satisfy user-specified numeric ranges. Click on left side to specify the parameter to be analyzed. Enter in the rightside boxes desired minimum and/or maximum value(s) of this and/or any other desired filtering parameter(s).

Click HERE for more on using this interface.

*Select an activity

     Get distribution function, etc. List data selected

*Select resolution
     1-min averaged 5-min averaged Click here to get time spans for individual parameters.
*Enter start and stop dates (Use yyyymmdd)
    Start      Stop

* Select variable
Variable Name Format Min/Max values:
Low    High
IMF Magnitude Avg, nT F8.2   
Bx, GSE/GSM, nT F8.2   
By, GSE, nT F8.2   
Bz, GSE, nT F8.2   
By, GSM, nT F8.2   
Bz, GSM, nT F8.2   
Flow Speed, km/sec F8.1   
Vx, GSE, nT F8.1   
Vy, GSE, nT F8.1   
Vz, GSE, nT F8.1   
Proton Density, n/cc F7.2   
Proton Temperature, K F8.0   
Flow Pressure, nPa F6.2   
Electric Field, mV/m F7.2   
Plasma beta F7.2   
Alfven Mach number F6.1   
Magnetosonic Mach number F5.1   
Spacecraft X, GSE, Re F8.2   
Spacecraft Y, GSE, Re F8.2   
Spacecraft Z, GSE, Re F8.2   
BSN location X, GSE, Re F8.2   
BSN location Y, GSE, Re F8.2   
BSN location Z, GSE, Re F8.2   

Provisional activity Indexes
AE Index, nT I6   
AL Index, nT I6   
AU Index, nT I6   
SYM/D, nT I6   
SYM/H, nT I6   
ASY/D, nT I6   
ASY/H, nT I6   
PC index from Thule F7.2   

Fluxes from GOES (Available for 5min resolution only)
Proton Flux >10 MeV, 1/(cm**2-sec-ster) F8.2   
Proton Flux >30 MeV, 1/(cm**2-sec-ster) F8.2   
Proton Flux >60 MeV, 1/(cm**2-sec-ster) F8.2   

* Specify bin size (width) in units natural to selected parameter
Note: Specify zero (0) to suppress the determination and display of a distribution function

*Advanced plot selections (optional)
Y-axes type: Character size(0.5-2.0):
DF units Image size (pixels): X: Y:


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