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Date: Sat, 25 Jul 2009 22:02:30 -0000
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Subject: Report of Solar Geophysical Activity (RSGA)
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:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Jul 25 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 206 Issued at 2200Z on 25 Jul 2009
IA. Analysis of Solar Active Regions and Activity from 24/2100Z
to 25/2100Z: Solar activity has been very low. No flares were
observed during the past 24 hours. The solar disk is spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 24/2100Z to 25/2100Z:
The geomagnetic field was at quiet to unsettled levels. Solar wind
speeds observed from the ACE spacecraft have diminished during the
past 24 hours. Solar wind velocities now average around 460 km/s.
The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly quiet for the next three days (26-28 July).
III. Event Probabilities 26 Jul-28 Jul
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 25 Jul 069
Predicted 26 Jul-28 Jul 070/070/070
90 Day Mean 25 Jul 069
V. Geomagnetic A Indices
Observed Afr/Ap 24 Jul 005/006
Estimated Afr/Ap 25 Jul 005/008
Predicted Afr/Ap 26 Jul-28 Jul 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 26 Jul-28 Jul
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
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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