Viewing archive of Tuesday, 9 October 2001

Geophysical report

Solar and Geophysical Activity Summary 2001 Oct 09 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 282 Issued at 0245Z on 09 Oct 2001 This report is compiled from data received at SWO on 08 Oct
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0527 0534 0548              C1.3     130
0809 0819 0838              C4.3            30     II
B. Proton Events
The greater than 10 MeV proton flux at geosynchronous orbit remained at elevated levels but below the proton event threshold of 10 pfu.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to unsettled levels with isolated active periods between 08/1200 and 2400 UTC. High speed stream effects are believed to be responsible for the slightly elevated field levels.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 171  SSN 130  Afr/Ap 015/015   X-ray Background B8.4
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.7e+06   GT 10 MeV 3.6e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.50e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 2 3 3 3 4 2 4 Planetary 2 3 3 3 4 4 2 4
F. Comments
  Afr based on Boulder A-indices.

<< Go to daily overview page

Latest news


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:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:266
Current stretch spotless days:39

This day in history*

Solar flares
*since 1994

Social networks