Viewing archive of Saturday, 17 May 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 May 17 0520 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 137 Issued at 0245Z on 17 May 2025 This report is compiled from data received at SWO on 16 MayA. 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
active conditions.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 117 SSN 057 Afr/Ap 011/013 X-ray Background B4.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.4e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.50e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 3 4 3 3 3 2 3 Planetary 2 3 3 2 3 2 2 4
F. Comments
None.
All times in UTC
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AR4087 193Unspecified geomagnetic activity 2498Solar Transit, Artifacts, or Radiation 19Ask your obscure/"stupid" space weather questions. 404Tuesday's Filament makes the news in the UK 7
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/15 | M2.1 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
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| April 2025 | 140.6 +6.4 |
| May 2025 | 69.8 -70.8 |
| Last 30 days | 94.8 -23.4 |