Viewing archive of Sunday, 21 May 2023

Geophysical report

Solar and Geophysical Activity Summary 2023 May 21 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 141 Issued at 0245Z on 21 May 2023 This report is compiled from data received at SWO on 20 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0649 0702 0712  3311 N19E72 M1.0  Sf                               
 0716 0732 0736  3311 N19E72 M6.4  1n        140                    
 0918 0927 0932  3312        M1.1                                   
 1048 1054 1110  3311        M1.6                                   
 1225 1235 1240  3311        M8.9                                   
 1454 1500 1504  3311        M5.6                                   
 1857 1903 1907  3311        M1.1                                   
 2252 2306 2321              M5.1            170                    
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field reached major storm levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 170  SSN 138  Afr/Ap 026/???   X-ray Background C2.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.1e+04   GT 10 MeV 2.2e+04 p/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.10e+06 e/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 5 6 4 3 4 3 3 Planetary 5 6 5 4 3 4 3 ? 
F. Comments
  None.

All times in UTC

<< Go to daily overview page

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!

63%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/05/27X2.8
Last M-flare2024/05/24M1.4
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024147.5 +11
Last 30 days143.3 +6.2

This day in history*

Solar flares
12003X5.17
22011M1.67
31998M1.51
42000M1.24
52011M1.19
ApG
1195063G3
2201749G3
3197045G3
4199444G3
5196755G3
*since 1994

Social networks