Viewing archive of Monday, 15 September 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Sep 15 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 258 Issued at 0245Z on 15 Sep 2025 This report is compiled from data received at SWO on 14 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached
minor storm levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 122 SSN 075 Afr/Ap 012/014 X-ray Background B8.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.7e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 3.10e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 3 3 2 2 3 4 Planetary 2 2 3 2 2 2 3 5
F. Comments
None
All times in UTC
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
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| December 2025 | 124 +32.2 |
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| Last 30 days | 122.3 +12.7 |