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Geophysical report
Solar and Geophysical Activity Summary 2026 Jul 23 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 204 Issued at 0245Z on 23 Jul 2026 This report is compiled from data received at SWO on 22 JulA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0002 0011 0015 4493 C2.4 170 0021 0021 0021 250 0029 0029 0030 120 0042 0042 0042 250 0056 0056 0056 100 0500 0500 0500 420 0532 0532 0532 1000 0621 0621 0621 110 0627 0635 0637 4493 M3.6 200 0637 0638 0638 810 0640 0642 0648 1600 0644 0644 0646 270 0747 0747 0749 4493 N06W05 Sf 640 0834 0834 0834 110 0842 0842 0842 120 1546 1553 1556 4493 N06W11 C3.4 Sf 150 2021 2021 2021 130 2224 2225 2225 2100 2339 2339 2340 380
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached
unsettled levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 150 SSN 063 Afr/Ap 011/012 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.0e+04 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.20e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices Boulder 1 4 3 3 3 3 3 3 Planetary 2 3 2 3 3 3 2 3
F. Comments
None
All times in UTC
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Space weather facts
| Last X-flare | 2026/07/04 | X1.3 |
| Last M-flare | 2026/07/22 | M3.6 |
| Last geomagnetic storm | 2026/07/23 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (1%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| June 2026 | 94.4 -7.1 |
| July 2026 | 73.1 -21.3 |
| Last 30 days | 81.9 -26.7 |
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