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LW3DBH > SOLAR 09.04.20 03:26l 70 Lines 2577 Bytes #999 (0) @ WW
BID : 60872_LW3DBH
Read: GUEST
Subj: SOLAR GEO ACTIVITY 08 04
Path: IW8PGT<IR2UBX<IW2OHX<IR1UAW<I0OJJ<LU4ECL<LW3DBH
Sent: 200409/0108Z @:LW3DBH.1744.BA.ARG.SA #:60872 [MORENO] FBB7.00i $:60872_LW
From: LW3DBH@LW3DBH.1744.BA.ARG.SA
To : SOLAR@WW
_ __ _______ ____ ____ _ _
| |\ \ / /___ /| _ \| __ )| | | | BBS
| | \ \ /\ / / |_ \| | | | _ \| |_| | MORENO
| |__\ V V / ___) | |_| | |_) | _ | ARGENTINA
|_____\_/\_/ |____/|____/|____/|_| |_|
======================================================================
:Product: Report of Solar-Geophysical Activity
:Issued: 2020 Apr 08 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 Solar Geophysical Activity Report and Forecast
SDF Number 99 Issued at 2200Z on 08 Apr 2020
IA. Analysis of Solar Active Regions and Activity from 07/2100Z to
08/2100Z: Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast: Solar activity is expected to be very low
on days one, two, and three (09 Apr, 10 Apr, 11 Apr).
IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 513 km/s at 08/1906Z. Total IMF reached 12
nT at 08/1338Z. The maximum southward component of Bz reached -9 nT at
08/0227Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 371 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (09 Apr, 10 Apr)
and quiet to active levels on day three (11 Apr).
III. Event probabilities 09 Apr-11 Apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 08 Apr 070
Predicted 09 Apr-11 Apr 070/070/070
90 Day Mean 08 Apr 071
V. Geomagnetic A Indices
Observed Afr/Ap 07 Apr 003/004
Estimated Afr/Ap 08 Apr 012/014
Predicted Afr/Ap 09 Apr-11 Apr 009/008-007/008-010/012
VI. Geomagnetic Activity Probabilities 09 Apr-11 Apr
A. Middle Latitudes
Active 20/20/35
Minor Storm 05/05/10
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/15
Minor Storm 30/30/30
Major-severe storm 25/25/45
+----------------------------------------------------------------------------+
If you float on instinct alone, how can you calculate the buoyancy for the
computed load?
-- Christopher Hodder-Williams
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