Viewing archive of Thursday, 18 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 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 291 Issued at 0245Z on 18 Oct 2001 This report is compiled from data received at SWO on 17 OctA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0251 0251 0253 360 1116 1123 1128 9658 S17W22 M1.1 Sf 130 43
B. Proton Events
None
C. Geomagnetic Activity Summary
Geomagnetic activity was at quiet
levels.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 217 SSN 171 Afr/Ap 005/004 X-ray Background C1.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.70e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 1 1 1 2 1 2 2 Planetary 2 1 1 1 2 2 2 1
F. Comments
None
All times in UTC
Latest news
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Tuesday, 8 October 2024
Double X-flares, glancing blow possible
Saturday, 5 October 2024
Incoming CME, G3 geomagnetic storm watch
Latest forum messages
AR 3879 9Ask your obscure/"stupid" space weather questions. 2Possible CME 31.10.2024 21:20 UTC Peak X2.03 from AR 3878 flare 10Latest SC25 Predictions 207AR 3878 145
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/10/31 | X2.0 |
| Last M-flare | 2024/10/31 | M4.6 |
| Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2024 | 141.4 -74.1 |
| Last 30 days | 157.2 +7.5 |