Activity summary of the solar and geophysical activity

Below you'll find a daily report brought to you by the NOAA about the solar activity and geophysical activity during the past day and the prediction for the coming days. This page is daily updated around midnight.

Solar and Geophysical Activity Summary 2024 May 18 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 139 Issued at 0245Z on 18 May 2024 This report is compiled from data received at SWO on 17 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0307 0307 0308                       740                           
 0503 0508 0512  3679        C3.1     190                           
 0630 0630 0631                       240                           
 1541 1541 1541                       200                           
 1838 1838 1838                       100                           
 2033 2108 2126  3685 S12E62 M7.2  2b 170           II/IV           
 2103 2103 2103                       250                           
 2119 2120 2120                       160                           
 2152 2155 2202                       110    130                    
B. Proton Events
None
C. Geomagnetic Activity Summary
Conditions were at quiet to G2 (Moderate) storm levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 204  SSN 168  Afr/Ap 016/028   X-ray Background C1.8
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.4e+07   GT 10 MeV 3.2e+05 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 2.90e+06 e/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 2 2 1 4 5 4 4 Planetary 2 2 2 1 4 5 6 5 
F. Comments
  None

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!

62%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/05/15X2.9
Last M-flare2024/05/17M7.1
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024157.2 +20.7
Last 30 days171.9 +57.9

This day in history*

Solar flares
12023M4.5
22000M3.96
32023M3.8
42023M2.2
52023M1.9
ApG
1198157G3
2199031G2
3197139G2
4195236G2
5193429G2
*since 1994

Social networks