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 yyyyddd or yyyymmdd)  
    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      
Magnetic field in RTN (Radial-Tangential-Normal)
IMF BR, nT X    Y      
IMF BT, nT X    Y      
IMF BN, nT X    Y      
Field Magnitude Aver., nT X    Y      
Plasma in RTN (Radial-Tangential-Normal)
Proton Flow Speed, km/sec X    Y      
Proton Flow Elevation Angle, deg X    Y      
Proton Flow Azimuth Angle, deg. X    Y      
Proton Density, n/cc X    Y      
Proton Temperature, K X    Y      
LET Proton fluxes (1/(sec-cm**2-ster-MeV)
1.8-3.6 X-axisY-axis      
4.0-6.0 X-axisY-axis   
6.0-10.0 X-axisY-axis   
10.0-12.0 X-axisY-axis   
HET Proton fluxes
13.6-15.1 MeV X-axis Y-axis   
14.9-17.1 MeV X-axis Y-axis   
17.0-19.3 MeV X-axisY-axis   
20.8-23.8 MeV X-axis Y-axis   
23.8-26.4 MeV X-axis Y-axis   
26.3-29.7 MeV X-axisY-axis   
29.5-33.4 MeV X-axis Y-axis   
33.4-35.8 MeV X-axis Y-axis   
35.5-40.5 MeV X-axis Y-axis   
40.0-60.0 MeV X-axis Y-axis   
60.0-100.0 MeV X-axis Y-axis   
SIT Proton fluxes (1/(sec-cm**2-ster-MeV)
0.320 - 0.452 X-axisY-axis      
0.452 - 0.640 X-axisY-axis   
0.640 - 0.905 X-axisY-axis   
0.905 - 1.280 X-axisY-axis   
1.280 - 1.810 X-axisY-axis   
1.810 - 2.560 X-axisY-axis      
2.560 - 3.620 X-axisY-axis   

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

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


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