OMNIWeb Plus Browser
to produce scatter plots and linear regression fits
Logarithmic Scatter Plot for Wind SWE Plasma definitive data, and plasma 3DP data ( non normalized to SWE) for Solar Wind only

Time span of data set  1995-01-01 - 2021-06-14

This page provides logarithmic regressions ("logarithmic regression" is shorthand for "linear regressions of logs of parameters") for proton and alpha density and temperature (with posibility to select different range of Plasma Speed ) It gives possibility to cross-normalize these parameters using the results of the logarithmic regressions because they tend to be more log-normally distributed than linearly distributed.

To generate scatter plots and regression fits specify: plot or list (retrieve); time span; X and Y parameters and max, min (optional) filter(s).
Please enter your selections and then click on the Submit button.

Select activity:   Scatter plot data List data

Enter start and stop dates: year,month,day(YYYYMMDD)
   Start time    Stop time

*Select X/Y or Y/X axes for any two variables

Variable Name SWE_def Protons SWE_def Alpha 3DP Protons 3DP Alpha
#N of points
Speed, km/sec.
Log. Density, n/cc X Y
Log Temperature, K X Y

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

*Advanced plot selections (optional)

View Mode: 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 the OMNWeb Plus, 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