Viewing archive of Monday, 21 August 2017

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 2017 Aug 21 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 233 Issued at 0245Z on 21 Aug 2017 This report is compiled from data received at SWO on 20 Aug
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0136 0152 0203  2672        M1.1                                   
 0225 0225 0225                       120                           
 0520 0520 0520                       180                           
 0522 0522 0522                       340                           
 1340 1340 1340                       150                           
 2209 2210 2210                       200                           
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to major storm levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 086  SSN 044  Afr/Ap 021/025   X-ray Background B3.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 4.4e+07   GT 10 MeV 1.5e+04 p/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 7.10e+08 e/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 5 6 4 4 3 3 2 3 Planetary 5 6 3 4 2 3 3 3 
F. Comments
  The greater than 2 MeV electron fluence reached high
levels today.

<< 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!

54%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/28X1.1
Last M-flare2024/04/25M1.3
Last geomagnetic storm2024/04/26Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2024104.9 -19.8
Last 30 days136.2 +28

This day in history*

Solar flares
11998X1.54
22006X1.13
32003M2.46
42001M1.81
52023M1.8
ApG
1199530G2
2202217G1
3200716G1
4202321
5199914
*since 1994

Social networks