If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center (http://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.
R-type CME detected by STEREO-A and STEREO-B
NOAA's Space Weather Prediction Center (http://swpc.noaa.gov) is the United States Government official source for space weather forecasts.
This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.
## NASA Goddard Space Flight Center, Space Weather Research Center ( SWRC )
## Message Type: Space Weather Notification - CME
## Message Issue Date: 2012-09-20T18:10:00Z
## Message ID: 20120920-AL-001
R-type CME detected by STEREO-A and STEREO-B COR2.
Start time of the event: 2012-09-20T15:24Z.
Estimated speed: ~2500 km/s.
Estimated opening half-angle: 55 deg.
Direction (lon./lat.): -160/-35 in Heliocentric Earth Ecliptic coordinates.
Messenger, STEREO-A and STEREO-B spacecraft can be affected.
Activity ID: 2012-09-20T15:24:00-CME-001.
PLEASE NOTE: the estimated speed and the propagation direction remain a ROUGH estimate (but to the best of our knowledge). Updates on this event will be provided when available.
For questions, comments, requests etc. contact: GSFC-Space-Weather-Center
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