Viewing archive of Sunday, 17 September 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 Sep 17 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 260 Issued at 0245Z on 17 Sep 2017 This report is compiled from data received at SWO on 16 Sep
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 1240 1240 1240                       110                           
B. Proton Events
None
C. Geomagnetic Activity Summary
Field conditions were at unsettled to major storm levels due to persistent effects from a positive polarity coronal hole high speed stream.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 072  SSN 013  Afr/Ap 023/030   X-ray Background 
F. Comments
  None

All times in UTC

<< 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!

98%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/07/16X2
Last M-flare2024/07/23M2.4
Last geomagnetic storm2024/06/28Kp8- (G4)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
June 2024164.2 -7.5
July 2024185.7 +21.5
Last 30 days181 +30.7

This day in history*

Solar flares
11999M4.84
22004M3.63
31999M3.07
42016M2.91
51999M2.9
DstG
11982-75G3
21983-74G2
31981-67G1
41972-57G2
51974-55G2
*since 1994

Social networks