Viewing archive of Monday, 27 April 2026
Geophysical report
Solar and Geophysical Activity Summary 2026 Apr 27 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 117 Issued at 0245Z on 27 Apr 2026 This report is compiled from data received at SWO on 26 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0008 0023 0035 4425 M1.3 150 0124 0124 0124 120 0133 0133 0134 24000 0142 0142 0142 190 0320 0321 0321 3100 1354 1403 1408 4420 N15W12 M1.4 Sf 230 1453 1454 1454 110 1549 1601 1607 4425 N06E56 C5.0 Sf 110 1918 1924 1927 M1.7 1954 2004 2007 4425 N05E55 M2.2 1n 2251 2257 2302 M6.0 30000 260
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was
unsettled.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 156 SSN 137 Afr/Ap 013/014 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.5e+05 GT 10 MeV 2.0e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.00e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices Boulder 2 3 2 4 2 2 3 3 Planetary 3 4 3 4 2 1 3 ?
F. Comments
None.
All times in UTC
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/22 | M2.3 |
| Last geomagnetic storm | 2026/05/16 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 87.6 +8.3 |
| Last 30 days | 98.4 +8 |
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