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OK0NAG > SOLAR 28.04.08 23:08l 72 Lines 2804 Bytes #999 (0) @ EU
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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Mon, 28 Apr 2008 22:01:38 -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 Apr 28 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 119 Issued at 2200Z on 28 Apr 2008
IA. Analysis of Solar Active Regions and Activity from 27/2100Z
to 28/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was quiet to unsettled. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels during the
past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet to unsettled with isolated active periods for
the next three days. An increase is expected late on day one (29
April) or early on day two (30 April) in response to a glancing blow
from the CME that was observed on 26 April.
III. Event Probabilities 29 Apr-01 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 28 Apr 069
Predicted 29 Apr-01 May 070/070/070
90 Day Mean 28 Apr 072
V. Geomagnetic A Indices
Observed Afr/Ap 27 Apr 007/010
Estimated Afr/Ap 28 Apr 010/010
Predicted Afr/Ap 29 Apr-01 May 008/008-010/012-010/015
VI. Geomagnetic Activity Probabilities 29 Apr-01 May
A. Middle Latitudes
Active 20/30/30
Minor storm 05/05/05
Major-severe storm 01/05/05
B. High Latitudes
Active 40/45/50
Minor storm 10/15/15
Major-severe storm 05/05/05
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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