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OK0NAG > SOLAR 09.04.09 23:13l 72 Lines 2892 Bytes #999 (0) @ EU
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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Thu, 9 Apr 2009 22:01:53 -0000
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Subject: Report of Solar Geophysical Activity (RSGA)
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:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Apr 09 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 099 Issued at 2200Z on 09 Apr 2009
IA. Analysis of Solar Active Regions and Activity from 08/2100Z
to 09/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours. The solar disk remains spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field was at quiet to active conditions. The ACE
spacecraft observed a continued rise in solar wind velocity during
the last 24 hours reflecting the arrival of the coronal hole high
speed stream. Wind speeds averaged around 480 km/s with Bz
fluctuations +/- 5 nT.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet to unsettled levels for 10 April.
Predominantly quiet conditions should return for 11-12 April.
III. Event Probabilities 10 Apr-12 Apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 09 Apr 070
Predicted 10 Apr-12 Apr 070/070/070
90 Day Mean 09 Apr 070
V. Geomagnetic A Indices
Observed Afr/Ap 08 Apr 004/005
Estimated Afr/Ap 09 Apr 009/013
Predicted Afr/Ap 10 Apr-12 Apr 007/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 10 Apr-12 Apr
A. Middle Latitudes
Active 30/05/05
Minor storm 05/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 35/10/10
Minor storm 10/01/01
Major-severe storm 05/01/01
Thank you for using the Product Subscription Service. If you would like
to remove a product subscription or update the personal information in
your account, go to: https://pss.swpc.noaa.gov. For problems, contact:
mailto:pss.help@noaa.gov.
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