Viewing archive of Friday, 3 October 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Oct 03 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 276 Issued at 0245Z on 03 Oct 2025 This report is compiled from data received at SWO on 02 OctA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0120 0120 0120 370 0155 0155 0155 630 0200 0209 0211 4226 S09W85 M1.2 Sf 730 II 0217 0222 0225 4235 N29E14 C5.2 Sf 4900 0706 0721 0757 4233 N18E06 C2.8 Sf 110 1117 1117 1117 100 1140 1140 1140 120 1147 1147 1147 140 1410 1417 1421 C3.0 140 1426 1426 1426 140 1433 1433 1433 110 1440 1440 1440 100 1515 1515 1515 100 1527 1527 1527 100 1539 1540 1540 1400 1554 1555 1555 210 1622 1622 1623 140 1629 1638 1644 C2.4 170 1654 1654 1654 110 1656 1703 1709 4236 N09W10 C3.0 Sf 130 1807 1807 1807 120 1839 1839 1839 130 1846 1846 1846 1100 1851 1853 1853 130 1949 1949 1950 130 2011 2011 2011 150 2208 2208 2208 330 2227 2227 2228 150 2230 2233 2233 140 2239 2239 2239 140 2242 2242 2242 110
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached
severe storm levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 167 SSN 161 Afr/Ap 030/045 X-ray Background C1.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.3e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.20e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 5 5 5 5 5 3 4 4 Planetary 5 7 5 5 4 2 5 4
F. Comments
None
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |