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Solar Energetic Particle
Event Time: 2024-09-17T14:31Z ( SOHO: COSTEP 28.2-50.1 MeV )
Activity ID: 2024-09-17T14:31:00-SEP-001 (version 2)
Note: The 28.2-50.1 MeV protons channel was likely previously elevated above background levels, but below threshold, starting on 2024-09-14 due to the X4.5 flare from Active Region 13825 (S18E55) which peaked at 2024-09-14T15:29Z. Additional contribution from the arrival of CME: 2024-09-14T15:36Z, which was observed at L1 by ACE and DSCOVR at 2024-09-16T22:49Z, likely resulted in the 28.2-50.1 MeV protons channel exceeding 10^(-1) pfu/MeV.

Submitted on 2024-09-18T21:06Z by Mattie Anastopulos

A Notification with ID 20240917-AL-006 was sent on 2024-09-17T15:22Z

All directly linked activities:

2024-09-14T15:13:00-FLR-001
FLR Type: X4.5

2024-09-14T15:36:00-CME-001

2024-09-16T22:49:00-IPS-001
Location: Earth

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