Important notice about reduced STEREO
Comparison with GONG and HMI farside maps.
Shown here is a side-by-side comparison between the
latest SECCHI beacon images
and the most recent
maps from the
Global Oscillation Network
Group (GONG), and the
Helioseismic and Magnetic
EUVI image revised: Wednesday, 29-Jul-2015 15:51:14 EDT
Image courtesy GONG project.
Image courtesy SDO/HMI project.
maps are based on an analysis of sound wave travel time variations, with
locations of shorter travel times appearing darker. These darker regions
indicate locations where there is an accumulation of magnetic field on the far
(farside information and references).
Candidates with a probability of 70% or higher are highlighted in
Last Revised: Wednesday, 12-Nov-2014 11:17:57 EST
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Feedback and comments: webmaster