Viewing archive of Saturday, 19 April 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Apr 19 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 109 Issued at 0245Z on 19 Apr 2025 This report is compiled from data received at SWO on 18 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0038 0038 0038 190 0038 0038 0039 220 0457 0457 0458 290 2308 2350 0015 M4.4 II 2333 2333 2344 570
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 156 SSN 113 Afr/Ap 011/??? X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.7e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.10e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 5 3 2 3 4 2 2 Planetary ? ? ? ? ? ? ? ?
F. Comments
None.
All times in UTC
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |