Viewing archive of Thursday, 22 September 2011

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 2011 Sep 22 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 265 Issued at 0245Z on 22 Sep 2011 This report is compiled from data received at SWO on 21 Sep
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0219 0219 0219                       180                           
 1204 1223 1245              M1.8                                   
 1347 1347 1347                       250                           
B. Proton Events
None
C. Geomagnetic Activity Summary
Quiet with localized unsettled to active levels at high latitudes around midday.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 144  SSN 108  Afr/Ap 002/005   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.4e+05   GT 10 MeV 1.3e+04 p/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 5.60e+06 e/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 1 2 1 2 2 1 2 Planetary 0 1 1 1 2 2 2 2 
F. Comments
  None

All times in UTC

<< Go to daily overview page

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Norilsk
The strength of the interplanetary magnetic field is moderate (16.82nT), the direction is North (13.31nT).
The maximum X-ray flux of the past two hours is:
C5.84

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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

14:30 UTC - Type II Radio Emission

Begin Time: 31/01/2025 13:56 UTC Estimated Velocity: 673km/sec.


14:30 UTC - 10cm Radio Burst

Begin Time: 31/01/2025 13:48 UTC Maximum Time: 31/01/2025 13:52 UTC Duration: 14 minutes. Peak flux: 280 sfu


14:24 UTC - Solar flare

Strong M6.76 flare

alert


14:03 UTC - Radio Blackout

Moderate R2 radio blackout in progress (≥M5 - current: M5.92)


13:54 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.48)


Get instant alerts!

Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/01/31M6.6
Last geomagnetic storm2025/01/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2024154.5 +2
January 2025145.3 -9.2
Last 30 days145.3 +10

This day in history*

Solar flares
12025M6.6
22002M5.2
32014M1.67
42025M1.0
52002C7.1
DstG
11993-85G2
21982-81G2
31963-75G2
41977-69G1
51978-64
*since 1994

Social networks