Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 01 Jun 2005

By SpaceRef Editor
June 1, 2005
Filed under , ,

Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Environment Center and the U.S. Air Force.

Updated 2005 Jun 01 2210 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 152 Issued at 2200Z on 01 Jun 2005

IA. Analysis of Solar Active Regions and Activity from 31/2100Z
to 01/2100Z: Solar activity was moderate. Region 772 (S18E36)
produced an M1 x-ray flare at 0243 UTC with associated type II
sweep. The region generated numerous C-class events during the day
as well. Data indicate a modest degree of magnetic complexity and
growth in white light. Elsewhere, new region 773 (S12E76) rotated
into view with mature leader and follower spots.

IB. Solar Activity Forecast: Solar activity is expected to be low.
Region 772 should continue to produce C-class activity with an
isolated M-class flare possible.

IIA. Geophysical Activity Summary 31/2100Z to 01/2100Z:
The geomagnetic field was quiet to unsettled. The energetic electron
flux at geosynchronous orbit was high again today.

IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be unsettled through 04 June.

III. Event Probabilities 02 Jun-04 Jun

  • Class M 25/25/25
  • Class X 01/01/01
  • Proton 01/01/01
  • PCAF green

IV. Penticton 10.7 cm Flux

  • Observed 01 Jun 094
  • Predicted 02 Jun-04 Jun 095/095/090
  • 90 Day Mean 01 Jun 092

V. Geomagnetic A Indices

  • Observed Afr/Ap 31 May 010/017
  • Estimated Afr/Ap 01 Jun 010/010
  • Predicted Afr/Ap 02 Jun-04 Jun 010/010-010/015-010/010

VI. Geomagnetic Activity Probabilities 02 Jun-04 Jun

A. Middle Latitudes

  • Active 25/25/25
  • Minor storm 15/15/15
  • Major-severe storm 05/05/05

B. High Latitudes

  • Active 30/30/30
  • Minor storm 15/15/15
  • Major-severe storm 05/05/05

SpaceRef staff editor.