Viewing archive of Friday, 23 July 2021

Geophysical report

Solar and Geophysical Activity Summary 2021 Jul 23 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 204 Issued at 0245Z on 23 Jul 2021 This report is compiled from data received at SWO on 22 Jul
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 089  SSN 077  Afr/Ap 009/010   X-ray Background B2.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.0e+05   GT 10 MeV 4.6e+04 p/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.20e+06 e/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 2 4 4 2 3 1 1 Planetary 1 2 3 4 3 1 2 1 
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-flare2025/03/28X1.1
Last M-flare2025/04/22M1.3
Last geomagnetic storm2025/04/21Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025126.2 -8
Last 30 days125.9 -2.4

This day in history*

Solar flares
12001M1.01
22024C8.3
32024C7.7
42024C7.6
52000C7.46
DstG
11960-147G3
21969-99G3
31985-98G3
41979-88G1
51989-74G1
*since 1994

Social networks