Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 29 August 2010

By SpaceRef Editor
August 29, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Aug 29 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 241 Issued at 2200Z on 29 Aug 2010
IA. Analysis of Solar Active Regions and Activity from 28/2100Z
to 29/2100Z: Solar activity has been at very low levels for the past
24 hours. Region 1101 (N12E07) remains quiet and stable. New Region
1102 (N27W13) was numbered today and emerged on the disk as a C-type
sunspot group with a beta magnetic classification.
IB. Solar Activity Forecast: Solar activity is expected to be at
very low levels for the next three days (30 August – 01 September).
IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field has been at quiet levels for the past 24 hours.
ACE solar wind readings indicated velocities gradually decreasing
from 580 to 450 km/s during the period. This decrease in velocity
was associated with the waning effects of the latest coronal hole
high speed stream. The greater than 2 MeV electron flux at
geosynchronous orbit was at high levels throughout the period.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet levels for the next three days (30 August –
01 September).
III. Event Probabilities 30 Aug-01 Sep
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 29 Aug 074
Predicted 30 Aug-01 Sep 074/075/076
90 Day Mean 29 Aug 077
V. Geomagnetic A Indices
Observed Afr/Ap 28 Aug 005/007
Estimated Afr/Ap 29 Aug 002/005
Predicted Afr/Ap 30 Aug-01 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 30 Aug-01 Sep
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01

SpaceRef staff editor.