Viewing archive of Monday, 28 April 2025

Geophysical report

Solar and Geophysical Activity Summary 2025 Apr 28 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 118 Issued at 0245Z on 28 Apr 2025 This report is compiled from data received at SWO on 27 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0004 0004 0004                       650                           
 0818 0828 0839              C1.3     170                           
 0845 0845 0845                       240                           
 1218 1218 1218                       120                           
 1516 1516 1516                       100                           
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field reached active levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 156  SSN 119  Afr/Ap 007/???   X-ray Background B8.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 9.4e+05   GT 10 MeV 1.5e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 4.60e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 3 1 2 2 4 2 1 Planetary ? ? ? ? ? ? ? ? 
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!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/05/14X2.7
Last M-flare2025/05/14M4.6
Last geomagnetic storm2025/05/03Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2025140.6 +6.4
May 202573.4 -67.2
Last 30 days99.6 -27.2

This day in history*

Solar flares
12024X3.48
22024X2.99
32013X1.85
42000M6.36
52005M5.05
DstG
12005-247G4
21969-121G4
31997-115G3
41981-114G3
52002-65
*since 1994

Social networks