Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 15 Apr 2008

By SpaceRef Editor
April 15, 2008
Filed under , , ,

Product: Report of Solar-Geophysical Activity
Issued: 2008 Apr 15 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 106 Issued at 2200Z on 15 Apr 2008

IA. Analysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: Solar activity was very low. No flares were observed in the past 24 hours. Region 990 (N20E05) is the only spotted region on the visible disk.

IB. Solar Activity Forecast: Solar activity is expected to be very low.

IIA. Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit was high during the past 24 hours.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet.

III. Event Probabilities 16 Apr-18 Apr

  • Class M 01/01/01
  • Class X 01/01/01
  • Proton 01/01/01
  • PCAF Green

IV. Penticton 10.7 cm Flux

  • Observed 15 Apr 069
  • Predicted 16 Apr-18 Apr 070/070/070
  • 90 Day Mean 15 Apr 072

V. Geomagnetic A Indices

  • Observed Afr/Ap 14 Apr 002/002
  • Estimated Afr/Ap 15 Apr 005/005
  • Predicted Afr/Ap 16 Apr-18 Apr 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 16 Apr-18 Apr

A. Middle Latitudes

  • Active 10/10/10
  • Minor storm 05/05/05
  • Major-severe storm 01/01/01

B. High Latitudes

  • Active 15/15/15
  • Minor storm 05/05/05
  • Major-severe storm 01/01/01

SpaceRef staff editor.