Solar activity report

Viewing archive of Thursday, 2 June 2005

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.

Report of Solar-Geophysical Activity 2005 Jun 02 2210 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 153 Issued at 2200Z on 02 Jun 2005

IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z

Solar activity was very low. Region 772 (S17E23) continues to show a modest amount of magnetic complexity.

IB. Solar Activity Forecast

Solar activity is expected to be low. There is a good chance of C-class activity from Region 772.

IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z

The geomagnetic field was quiet to mildly unsettled. The energetic electron flux at geosynchronous orbit was high again today.

IIB. Geophysical Activity Forecast

The geomagnetic field is expected to be quiet to unsettled through 05 June.

III. Event Probabilities 03 Jun to 05 Jun

Class M	10%	10%	10%
Class X	01%	01%	01%
Proton	01%	01%	01%
PCAF	green

IV. Penticton 10.7 cm Flux

  Observed       02 Jun 093
  Predicted   03 Jun-05 Jun  095/090/090
  90 Day Mean        02 Jun 093

V. Geomagnetic A Indices

  Observed Afr/Ap 01 Jun  005/008
  Estimated     Afr/Ap 02 Jun  005/007
  Predicted    Afr/Ap 03 Jun-05 Jun  005/015-005/010-005/010

VI. Geomagnetic Activity Probabilities 03 Jun to 05 Jun

A. Middle Latitudes
Active	15%	15%	15%
Minor storm	10%	10%	10%
Major-severe storm	05%	05%	05%

B. High Latitudes
Active	25%	20%	20%
Minor storm	15%	10%	10%
Major-severe storm	05%	05%	05%

All times in UTC

Previous rotation Previous day Calendar

Next day Next rotation

<< Go to daily overview page

Latest news

Monday, 30 March 2026

X1.5 solar flare

Tuesday, 17 March 2026

M2.7 solar flare, CME arrival possible

Sunday, 1 February 2026

Complex sunspot region 4366

More news

Latest forum messages

AR4419 40 Coronal Holes 42/44 16 Current Farside Activity 457 Incoming & Unnumbered Active Regions 272 Comet C/2026 A1 (MAPS) for the southern hemisphere 68

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!