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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Mon, 21 Jan 2008 22:01:57 -0000
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Subject: Report of Solar Geophysical Activity (RSGA)
X-asg-orig-subj: Report of Solar Geophysical Activity (RSGA)
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:Product: Report of Solar-Geophysical Activity
:Issued: 2008 Jan 21 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 021 Issued at 2200Z on 21 Jan 2008
IA. Analysis of Solar Active Regions and Activity from 20/2100Z
to 21/2100Z: Solar activity was at very low levels. The visible
solar disk remained spotless.
IB. Solar Activity Forecast: Solar activity is expected to continue
at very low levels.
IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field was at quiet levels. Solar wind speed
measurements from the ACE spacecraft have been declining. At the
end of the summary period wind speed was below 550 km/s. The
greater than 2 MeV electron flux at geosynchronous orbit was at high
levels again today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to remain at quiet levels throughout the forecast period
(22 - 24 January).
III. Event Probabilities 22 Jan-24 Jan
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 21 Jan 072
Predicted 22 Jan-24 Jan 070/070/070
90 Day Mean 21 Jan 074
V. Geomagnetic A Indices
Observed Afr/Ap 20 Jan 004/006
Estimated Afr/Ap 21 Jan 003/005
Predicted Afr/Ap 22 Jan-24 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 22 Jan-24 Jan
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/10/10
Minor storm 05/05/05
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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