Viewing archive of Wednesday, 20 April 2011

Geophysical report

Solar and Geophysical Activity Summary 2011 Apr 20 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 110 Issued at 0245Z on 20 Apr 2011 This report is compiled from data received at SWO on 19 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 1208 1208 1208                       120                           
 1208 1208 1208                       140                           
 1755 1755 1755                       100                           
 1758 1758 1758                       100                           
 1829 1829 1830                       130                           
 1832 1832 1832                       140                           
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to unsettled levels..
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 111  SSN 076  Afr/Ap 004/006   X-ray Background B4.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.8e+04   GT 10 MeV 1.3e+04 p/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W76 degrees)
Daily Electron Fluence
GT 2 MeV 1.90e+06 e/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W76 degrees)
3 Hour K-indices
Boulder 1 2 1 1 2 2 1 3 Planetary 1 2 1 1 2 2 1 3 
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!

100%

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 2019:239
Current stretch spotless days:12

This day in history*

Solar flares
11999M8.0
21999M5.6
32005M3.9
41999M2.8
52005M2.6
ApG
1199841G2
2200338G1
3201237G2
4199621G1
5201412
*since 1994

Social networks