Cohoweb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center
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Interface to produce averages, standard deviations and, if desired, distribution functions for Solar Orbiter (SOLO).

This page provides the ability to produce averages, standard deviations and distribution functions for any one of parameters listed below,
only for hours when the value of this parameter and/or other parameters satisfy user-specified numeric ranges.
Click on left side to specify the output parameter. 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 details about the data
Click HERE for more on using this interface.

*Select an activity

     Get distribution function, etc. 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 Min/Max values(Optional):
Low    High
Position in HGI
Heliocentric Distance, AU   
HelioGraphic Inertial (HGI) Latitude, deg.   
HGI Longitude, deg.   
Magnetic field in RTN(Radial-Tangential-Normal)
IMF BR, nT   
IMF BT, nT   
IMF BN, nT   
Magnitude of Average IMF, nT   
Plasma in RTN
Proton Velosity, VR, km/sec   
Proton Velosity, VT, km/sec.   
Proton Velosity, VN, km/sec   
Proton Flow Speed, km/sec   
Proton Flow Elevation Angle/Latitude, deg.   
Proton Flow Azimuth Angle/Longitude, deg.   
Proton Density, n/cc   
Proton Temperature, K   

* 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 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