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Solar energetic particle event at STEREO B
## NASA Goddard Space Flight Center, Space Weather Center ( SWC )
## Message Type: Space Weather Alert
## Message Issue Date: 2012-07-12T19:10:00Z
## Message ID: 20120712-AL-004
## Alert Summary:
Solar energetic particle event detected by STEREO B. The flux of 13-100 MeV protons exceeds 10^(-1) pfu/MeV starting at 2012-07-12T18:18Z.
Earlier solar energetic particle event was detected by GOES and SOHO (see alerts 20120712-AL-002, 20120712-AL-003).
The enhancement is associated with the X1.4 flare peaked at 2012-07-12T16:52Z (see alert 20120712-AL-001) and its associated CME.
All spacecraft between the source region (AR 1520 - S15W01) and Earth (including MEO, GEO and other high-altitude orbits and high-inclination LEO) can be impacted.
Activity ID: 2012-07-12T17:50:00-SEP-001.
For questions, comments, requests etc. contact: GSFC-Space-Weather-Center gsfc-spaceweatherdeskmail [dot] nasa [dot] gov>
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