Cohoweb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center
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Interface to produce Plots, listings, output files

This page provides the ability to plot or list (or create a file of) any selection of the Helios2 parameters listed below,

*Select an activity

Plot data List data Create file

*Select resolution
     Hourly averaged Daily averaged

*Enter start and stop dates (Use yyyyddd or yyyymmdd)  [19741210 - 19810614]
    Start      Stop   [Click here to get time spans for individual parameters.]

* Select variable
Position in HGI
Heliocentric Distance (start of data interval), AU
HelioGraphic Inertial (HGI) Latitude, deg.
HGI Longitude, deg.
Earth-Sun-Helios1 separation angle, deg.
Magnetic field in RTN
BR in RTN (Radial-Tangential-Normal) coordinate system, nT
B Field Magnitude (average of fine scale magnitudes), nT
Plasma in RTN
Proton Flow Speed , km/sec
Proton Flow Elevation Angle/Latitude, (RTN), deg.
Proton Flow Azimuth Angle/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: 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:


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