Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 21 June 2010

By SpaceRef Editor
June 21, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Jun 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 172 Issued at 2200Z on 21 Jun 2010
IA. Analysis of Solar Active Regions and Activity from 20/2100Z
to 21/2100Z: Solar activity has been very low. Region 1082 (N27W23)
produced today’s only flare, an isolated B1 event at 21/1912Z. A
filament near N19W18 disappeared sometime between 21/0207Z and
21/1200Z, and was associated with a CME on the west limb.
Coronagraph data indicates the CME is not earth directed
IB. Solar Activity Forecast: Solar activity is expected to be very
low with a slight chance for an isolated C-class event.
IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field has been predominately quiet with an isolated
unsettled period at 21/0600-0900Z. The greater than 2 MeV electron
flux at geosynchronous orbit was at high levels today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet.
III. Event Probabilities 22 Jun-24 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 21 Jun 072
Predicted 22 Jun-24 Jun 072/072/072
90 Day Mean 21 Jun 075
V. Geomagnetic A Indices
Observed Afr/Ap 20 Jun 002/003
Estimated Afr/Ap 21 Jun 004/005
Predicted Afr/Ap 22 Jun-24 Jun 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 22 Jun-24 Jun
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.