Viewing archive of Wednesday, 1 September 2021

Geophysical report

Solar and Geophysical Activity Summary 2021 Sep 01 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 244 Issued at 0245Z on 01 Sep 2021 This report is compiled from data received at SWO on 31 Aug
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0232 0233 0233                       520                           
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 084  SSN 037  Afr/Ap 009/008   X-ray Background B1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.6e+04   GT 10 MeV 4.5e+04 p/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 7.70e+07 e/(cm2-ster-day)
(GOES-16 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 3 2 2 2 2 1 1 Planetary 3 3 2 1 2 2 0 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 Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2026/02/04X4.21
Last M-flare2026/03/18M2.7
Last geomagnetic storm2026/03/22Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (4%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
February 202678.2 -34.3
March 202677 -1.2
Last 30 days71.5 -16.6

This day in history*

Solar flares
12000X2.61
22000M4.09
32000M3.71
42024M2.7
52001M2.43
DstG
11991-281G4
21969-228G4
32023-163G4
42024-128G4
52002-100G2
*since 1994

Social networks