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OK0NAG > SOLAR 30.03.08 00:30l 76 Lines 3113 Bytes #999 (0) @ EU
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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Sat, 29 Mar 2008 22:02:04 -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 Mar 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 089 Issued at 2200Z on 29 Mar 2008
IA. Analysis of Solar Active Regions and Activity from 28/2100Z
to 29/2100Z: Solar activity was very low. The three spotted regions
on the disk, 987 (S06W31), 988 (S08W06), and 989 (S12E23) were all
generally stable and quiet during the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very
low. There is a chance, however, for an isolated C-class event
during the next three days (30 March - 01 April).
IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field was quiet to unsettled. Solar wind speed as
measured at ACE showed a downward trend during the period which is
indicative of the decline of the high speed solar wind stream;
day-end values were around 550 km/s. The greater than 2 MeV electron
flux at geosynchronous orbit reached very high levels during the
past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet to unsettled for the first day (30 March) and
is expected to be predominantly quiet for the second and third days
(31 March - 01 April).
III. Event Probabilities 30 Mar-01 Apr
Class M 05/05/05
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 29 Mar 083
Predicted 30 Mar-01 Apr 080/080/080
90 Day Mean 29 Mar 073
V. Geomagnetic A Indices
Observed Afr/Ap 28 Mar 013/021
Estimated Afr/Ap 29 Mar 010/010
Predicted Afr/Ap 30 Mar-01 Apr 008/010-005/005-005/008
VI. Geomagnetic Activity Probabilities 30 Mar-01 Apr
A. Middle Latitudes
Active 20/10/10
Minor storm 10/05/05
Major-severe storm 05/01/01
B. High Latitudes
Active 25/15/15
Minor storm 15/05/05
Major-severe storm 05/01/01
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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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