OMNIWeb Plus Browser

Multi-Source Spectral Plots (MSSP-2) of energetic particle fluxes, all observed species

About the data
About using this interface
Heliocentric locations of spacecraft
Spectra of H and He from many sources

Please enter your selections and time span, then click on the Submit button below.

Data source Time span Time
H He C N O Ne Na Mg Al Si S Ar Ca Fe Ni
ACE EPAM 1997-08-30 - 2015-05-30 1day                  
ACE SIS 1997-08-29 - 2023-05-05 1-hr  
ACE ULEIS 1998-02-19 - 2023-05-05 1-hr                    
ACE CRIS 1997-08-27 - 2023-05-05 1-day    
ACE SEPICA 1997-10-07 - 2005-02-05 1-hr            
NEW HORIZONS V3 2015-01-16 - 2016-10-29 1-hr                    
STEREO-A LET, Caltech 2006-11-14 - 2023-03-31 1-hr
STEREO-A SIT, Caltech 2007-01-01 - 2022-10-09 1-hr                      
STEREO-A SIT Berkeley 2007-03-15 - 2023-03-31 1-hr                    
STEREO-B LET, Caltech 2006-11-14 - 2014-09-27 1-hr
STEREO-B SIT, Caltech 2007-01-27 - 2014-09-27 1-hr                      
STEREO-B SIT, Berkeley 2007-03-15 - 2014-09-27 1-hr                    
Ulysses HISCALE 1990-11-14 - 2009-06-08 1day                  
Voyager-1 CRS, 1983-02-01 - 2020-06-16 1-day
Voyager-2 CRS, 1983-02-01 - 2020-07-19 1-day  
Wind EPACT/LEMT 1994-11-03 - 2022-12-31 1-hr                  
Wind EPACT/STEP 1995-01-01 - 2021-12-12 1-hr                        

* Enter start and stop times over which to make average fluxes for first spectral plot
    (Use YYYYMMDD format)

     Start      Stop

*Optional specifications

      Enter energy range(MeV/n) for plot and power law fit: Start      Stop

      Y scale range: Bottom (e.g., 1.0e-5)      Top (e.g., 1.0e+1)

Character size(0.5-2.0): Connect Type:
Symbol Size(0.1-4.0): Image size (pixels): X: Y:

This interface was built for the Virtual Energetic Particle Observatory
If you have any questions/comments about this service contact: Dr. Natalia Papitashvili, SPDF, Code 672, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

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