Cohoweb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center
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Interface to produce scatter plots and regression fits, or listings

Click HERE for more on using this interface.

For Advanced Options: For Linear Regression Fits (LRF) and scatter plots for single lag (including zero lag) and
for LRF for series of lags, for auto- and cross-correlation HERE

*Select an activity

     Scatter plot data List data selected

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

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

* Select the fitting method
    No fitting     Delta-Y method(N<30000)

*Advanced plot selections (optional)
Character size(0.5-2.0):
Plot Symbol: Symbol Size(0.1-4.0):
Image size (pixels): X: Y: Connect Type:


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

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