Viewing archive of Friday, 11 April 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Apr 11 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 101 Issued at 0245Z on 11 Apr 2025 This report is compiled from data received at SWO on 10 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
active.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 153 SSN 112 Afr/Ap 011/??? X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.7e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.30e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 4 4 4 2 2 3 2 3 Planetary 4 3 4 2 2 2 3 4
F. Comments
None
All times in UTC
Latest news
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Latest forum messages
Current Farside Activity 281AR 4336 47Source for historical daily sunspot plots 5Discussions of unproven theories are no longer allowed 124Space Weather Memes 774
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/31 | M7.11 |
| Last geomagnetic storm | 2026/01/02 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 110 -14 |
| Last 30 days | 103.2 -6.5 |