Predicted arrivals of solar storms at planets and spacecraft 2007-2014 with STEREO

This is a visualization of the predicted impacts of solar storms observed with the STEREO heliospheric imagers covering 2007-2014, at a 3 hour time resolution. <div><br></div><div>It shows planets (filled circles) and spacecraft (filled squares) projected in the solar equatorial plane, in colors as indicated at the bottom. Large red (blue) circles are CMEs moving at constant propagation speed, with constant direction and constant angular width of 60°, modeled after observations by STEREO-Ahead (STEREO-Behind). </div><div><br></div><div>At an impact time, a circle with the color of the spacecraft and size related to the impact speed at the target according to the legend on the lower part of the figure is produced. This „impact circle" fades away with time so an impact is better visible. </div

HELCATS catalog of predicted coronal mass ejection arrivals ARRCAT

This catalog lists arrivals of solar coronal mass ejections at various spacecraft and planets predicted with the STEREO heliospheric imager instruments, between April 2007 - September 2014.<div><br></div><div><div>If this is used for a peer reviewed publication, please notify me via "christian.moestl [at] oeaw.ac.at" or "https://twitter.com/chrisoutofspace"</div><div><br></div><div>Number of events in ARRCAT: 1995</div><div><br></div><div>Targets: EARTH-L1, STEREO-A, STEREO-B, VENUS, MESSENGER, MARS, SATURN, ULYSSES, MSL, MAVEN, ROSETTA</div><div><br></div><div>The .sav file can be read directly in IDL ("restore" function) and python ("scipy.io.readsav").</div><div><br></div><div>See header file for more explanations.</div></div

Solar Storms around Earth and the terrestrial planets from 2007-2015

<div>Almost 9 years of spacecraft observations condensed into 14 minutes.</div><div><br></div><div>This animation shows, on the left side, solar storms that propagate as circular fronts away from the Sun, based on data from the heliospheric imagers onboard the two NASA STEREO spacecraft.</div><div><br></div><div>On the right side, in situ magnetic field components and the total field are shown from various spacecraft exploring the inner heliosphere during the same time: MESSENGER, Venus Express, Wind near Earth and the two STEREO spacecraft themselves. Whenever a solar storm impacts a spacecraft, a circle lights up and fades at the impact location in the left panel.</div><div><br></div><div>This was made possible by the EU-funded HELCATS project. </div><div>HI tracking and modeling: R. Harrison, J. Davies, D. Barnes et al. at RAL, UK</div><div>In situ data: C. Moestl, P. Boakes, University of Graz, Austria and A. Isavnin, E. Kilpua University of Helsinki, Finland</div