Space Weather Message Code: ALTEF3

Serial Number: 3591

Issue Time: 2025 Dec 31 1632 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3590

Begin Time: 2025 Dec 21 1425 UTC

Yesterday Maximum 2MeV Flux: 5613 pfu


Comment: Electrons went over threshold at 31/1255 through 31/1530 UTC.







Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

---

Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help.