Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 04 Sep 2009

By SpaceRef Editor
September 4, 2009
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Sep 04 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 247 Issued at 2200Z on 04 Sep 2009
IA. Analysis of Solar Active Regions and Activity from 03/2100Z
to 04/2100Z: Solar activity was very low. No flares were observed.
The visible disk remained spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z:
The geomagnetic field was predominantly quiet. A single period of
unsettled levels was observed at mid-latitudes between
03/2100-2400Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be predominantly quiet for the next three days (05-07
September).
III. Event Probabilities 05 Sep-07 Sep
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 04 Sep 068
Predicted 05 Sep-07 Sep 068/068/068
90 Day Mean 04 Sep 068
V. Geomagnetic A Indices
Observed Afr/Ap 03 Sep 004/004
Estimated Afr/Ap 04 Sep 006/008
Predicted Afr/Ap 05 Sep-07 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 05 Sep-07 Sep
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01

SpaceRef staff editor.