Viewing archive of Wednesday, 25 April 2012
Geophysical report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2012 Apr 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 116 Issued at 0245Z on 25 Apr 2012 This report is compiled from data received at SWO on 24 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0738 0745 0800 1467 C3.7 110 II 1139 1151 1202 1462 C1.1 10000 1251 1251 1251 140 1343 1343 1343 360 1505 1505 1505 100 1546 1546 1546 190
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to severe storm levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 134 SSN 169 Afr/Ap 030/043 X-ray Background B5.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.1e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.60e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 6 5 6 2 2 3 3 5 Planetary 7 6 5 2 3 3 4 5
F. Comments
None
All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Feb 8-9 CMEs 28Current Farside Activity 374Yes, we really went to the moon before. 4Do the high-resolution sunspot counts point to more complex sunspots? 63AR4366 1027
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 | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/12 | M1.4 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 125.3 +12.7 |
| Last 30 days | 130.4 +32.7 |