Viewing archive of Thursday, 25 October 2001
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 2001 Oct 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 298 Issued at 0245Z on 25 Oct 2001 This report is compiled from data received at SWO on 24 OctA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1145 1146 1146 160 1405 1418 1437 9669 N12W46 C3.8 Sf 2320 2322 2322 100
B. Proton Events
Greater than 10 MeV protons were elevated but
continued slow decay.
C. Geomagnetic Activity Summary
Geomagnetic activity was at quiet
levels. The shock arrival from the two CMEs (M6/2N on 22/1502 UTC
and X1/2B on 22/1759 UTC)) appears to have lower shock velocity than
expected. The early signs of a shock signature are visible on NASA
ACE/EPAM data.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 239 SSN 230 Afr/Ap 004/003 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.2e+05 GT 10 MeV 2.3e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.20e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 1 1 1 2 2 1 0 Planetary 1 0 0 1 1 2 1 1
F. Comments
None
All times in UTC
Latest news
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
Latest forum messages
AR4299 M8.1 CME 2025/12/06 37Unspecified geomagnetic activity 41AR 4299 82AR4294 / 4296 / 4298 336Electron event 8
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 | 2025/12/01 | 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 | 175.4 +83.6 |
| Last 30 days | 106.4 +12.9 |