Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 17 September 2010

By SpaceRef Editor
September 18, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Sep 17 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 260 Issued at 2200Z on 17 Sep 2010
IA. Analysis of Solar Active Regions and Activity from 16/2100Z
to 17/2100Z: Solar activity ranged from very low to low. Region
1108 (S28E59) produced the largest event of the period, a C1/Sf at
17/0122Z. Additionally, Region 1108 and Region 1106 (S20W08)
produced several B-class events, along with numerous low frequency
radio activity.
IB. Solar Activity Forecast: Solar activity is expected to be low
with a chance of moderate activity from Region 1108.
IIA. Geophysical Activity Summary 16/2100Z to 17/2100Z:
Geomagnetic activity was quiet to unsettled with an isolated active
period observed at 17/0600Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be predominately quiet for the next three days (18 – 20
September).
III. Event Probabilities 18 Sep-20 Sep
Class M 25/25/25
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 17 Sep 082
Predicted 18 Sep-20 Sep 085/086/086
90 Day Mean 17 Sep 079
V. Geomagnetic A Indices
Observed Afr/Ap 16 Sep 005/006
Estimated Afr/Ap 17 Sep 008/008
Predicted Afr/Ap 18 Sep-20 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 18 Sep-20 Sep
A. Middle Latitudes
Active 05/05/10
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/10/15
Minor storm 01/01/01
Major-severe storm 01/01/01

SpaceRef staff editor.