The key code was designed by the NASA Space Radiation Analysis Group to quickly identify hazardous active regions.
Map of Active Solar Regions (Earthside View)
Maps are now being generated, however have not been tested. Location table not back yet.
The adjacent map shows the current
active region numbers and locations assigned by the National Oceanic and Atmospheric
Administration Space Environment Center. The colored circle below the
active region indicates the activity level and hazard potential of an active
region. See color coding used (below right). When a flare that is associated
with a particular region occurs, a red circle is drawn around its indicator
for approximately 1 hour. If flares occur in the orange shaded area on the
right side of the map, they are more likely to be directed towards Earth.
A table showing computed locations of
the active regions and relative changes is available.
Map of Active Solar Regions (Farside View)
The adjacent map shows approximate locations of regions on the far side of the Sun (assuming a uniform solar rotation rate). Meridian lines show days until the region might possibly re-appear on the Earth side view of the Sun.