This web site is an online database of interplanetary shocks
observed by the Wind and ACE spacecraft. These pages are
maintained by Dr. Michael L. Stevens and Professor Justin C. Kasper, in support of studies
of shock physics and particle acceleration. The pages are
updated as new events are observed and as the analysis methods
A similar analysis of the
IMP-8, Voyager, and STEREO spacecraft will ultimately be added to this
site if there is interest.
Use the links on the left under Select Spacecraft
to select a spacecraft and view the
interplanetary shocks in the database. For each spacecraft, shocks are
listed by year. Selecting a year will bring you to a web
page that lists every event that was analyzed in that year, and
some summary information. Click on any individual event to view
figures that summarize the observations, data selection, and
the analysis, along with tables that list derived quantities and
Follow the other links to learn more about the shock analysis
methods employed in this database, and to read about
publications that make use of the database and of
recent scientific results and publications.
Leaving the Heliosphere
Observations of the Voyager II termination shock crossing have been published in Nature. Follow this link for a copy of our article on the surprising results.