Viewing archive of Friday, 21 April 2023

Geophysical report

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

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 111 Issued at 0245Z on 21 Apr 2023 This report is compiled from data received at SWO on 20 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0505 0507 0507                       210                           
 0512 0514 0514                       230                           
 0800 0800 0800                       130                           
 1214 1224 1231  3283 S21E02 C2.3  Sf 720                           
 1335 1335 1335                       150                           
 1454 1454 1454                       190                           
 1804 1804 1804                       160                           
 1856 1856 1856                       110                           
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 147  SSN 097  Afr/Ap 005/004   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.8e+04   GT 10 MeV 2.2e+04 p/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.40e+06 e/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 0 1 1 1 2 3 1 2 Planetary 1 0 1 1 1 2 1 2 
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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M8.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days116.1 -41.8

This day in history*

Solar flares
12024M8.9
22015M6.75
31998M3.34
42013M2.36
52013M1.97
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks