Viewing archive of Saturday, 20 September 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Sep 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 263 Issued at 0245Z on 20 Sep 2025 This report is compiled from data received at SWO on 19 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0903 0903 0903 130 2049 2112 2120 4216 N09W25 C5.8 3n 2122 2141 2156 4216 M1.5
B. Proton Events
None
C. Geomagnetic Activity Summary
Field activity was at quiet
levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 160 SSN 158 Afr/Ap 007/007 X-ray Background C1.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.6e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.90e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 1 0 1 2 1 1 1 Planetary ? ? ? ? ? ? ? ?
F. Comments
None
All times in UTC
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Latest forum messages
AR4455 85Unspecified geomagnetic activity 285Incoming & Unnumbered Active Regions 452AR4458 3AR4446 (including AR4448/4449) 49
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| Last M-flare | 2026/06/03 | M9.3 |
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