Viewing archive of Wednesday, 11 April 2001

Geophysical report

Solar and Geophysical Activity Summary 2001 Apr 11 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 101 Issued at 0245Z on 11 Apr 2001 This report is compiled from data received at SWO on 10 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0258 0258 0301                       150
0506 0526 0542  9415 S23W09 X2.3  3b 10000  4000   II/IV
B. Proton Events
A greater than 10 MeV proton event began at 0850 UTC. The maximum flux observed on the 10th was 110 PFU at 2325 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 170  SSN 170  Afr/Ap 013/009   X-ray Background B4.7
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.8e+07   GT 10 MeV 3.7e+06 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 9.50e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 0 2 2 3 4 2 2 Planetary 3 1 2 2 3 3 2 2
F. Comments
  None

<< Go to daily overview page

Latest news

Support 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!

37%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/04/20Kp5 (G1)
Number of spotless days in 2020:112
Current stretch spotless days:20

This day in history*

Solar flares
12002X2.1
22001M6.4
32002M5.0
42002M4.7
52013M1.7
ApG
1200523G1
2201722
3200413
4199513
5199812
*since 1994

Social networks