Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 28 April 2010

By SpaceRef Editor
April 28, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 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 118 Issued at 2200Z on 28 Apr 2010
IA. Analysis of Solar Active Regions and Activity from 27/2100Z
to 28/2100Z: Solar activity was very low. New Region 1063 (N16E14)
was numbered today and is magnetically classified as a Beta group.
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.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be predominantly quiet for the next three days (29 April
– 01 May).
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 076
Predicted 29 Apr-01 May 076/076/076
90 Day Mean 28 Apr 081
V. Geomagnetic A Indices
Observed Afr/Ap 27 Apr 003/004
Estimated Afr/Ap 28 Apr 004/004
Predicted Afr/Ap 29 Apr-01 May 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 29 Apr-01 May
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

SpaceRef staff editor.