Cohoweb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center
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Interface to produce listings/plots with filtering

This page provides the ability to list (or create a file of) any selection of the Helios2 parameters listed below, only for hours when these and/or other parameters satisfy user-specified numeric ranges. Click left boxes to select output parameters, and enter desired minimum and/or maximum value(s) in box(es) to the right of any desired "filtering" parameter(s).

*Select an activity

List data    Create file   Plot filtered data

*Enter start and stop dates (Use yyyyddd or yyyymmdd)  [19760101 - 19800304]
    Start      Stop   [Click here to get time spans for individual parameters.]     

* Select variable
Variable Name Min/Max values(Optional):
Low    High
Position in HGI
Heliocentric Distance, AU   
HelioGraphic Inertial (HGI) Latitude, deg.   
HGI Longitude, deg.   
Earth-Sun-Helios1 separation angle, deg.   
Magnetic field in RTN(Radial-Tangential-Normal)
IMF BR in RTN (Radial-Tangential-Normal), nT   
IMF BT, nT (RTN)   
IMF BN, nT (RTN)   
B Field Magnitude (Scalar), nT   
Plasma in RTN
Proton Flow Speed, km/sec   
Proton Flow Latitude, RTN, deg.   
Proton Flow Longitude, RTN, deg.   
Proton Density, n/cc   
Proton Temperature, K   
E6 Proton fluxes (1/(sec-cm**2-ster-MeV)
4-13 MeV   
13-27 MeV   
27-37 MeV   
37-51 MeV   
E7 Proton fluxes (1/(sec-cm**2-ster-MeV)
3.42-5.40 MeV   
6.40-11.95 MeV   
11.95-22.15 MeV   
24.59-28.74 MeV   
32.20-45.93 MeV   
45.93-57.56 MeV   
143.0-204.5 MeV   

*Advanced plot selections (optional)
Y-axis Scale:
Character size(0.5-2.0): Symbol Size(0.1-4.0):
Plot Symbol: 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