Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 27 Jan 2009

By SpaceRef Editor
January 28, 2009
Filed under , , ,

Product: Report of Solar-Geophysical Activity
Issued: 2009 Jan 27 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 027 Issued at 2200Z on 27 Jan 2009

IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity was very low. The disk was spotless. No flare activity was observed.

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

IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field was quiet. Solar wind velocities ranged from 340 to 420 km/sec and Bz from -5 to +5 nT.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet with occasional periods of unsettled activity.

III. Event Probabilities 28 Jan-30 Jan

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

IV. Penticton 10.7 cm Flux

  • Observed 27 Jan 070
  • Predicted 28 Jan-30 Jan 070/070/070
  • 90 Day Mean 27 Jan 069

V. Geomagnetic A Indices

  • Observed Afr/Ap 26 Jan 009/010
  • Estimated Afr/Ap 27 Jan 005/005
  • Predicted Afr/Ap 28 Jan-30 Jan 005/005-005/005-007/008

VI. Geomagnetic Activity Probabilities 28 Jan-30 Jan

A. Middle Latitudes

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

B. High Latitudes

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

SpaceRef staff editor.