Status Report

NOAA SEC Report of Solar-Geophysical Activity 27 Feb 2001

By SpaceRef Editor
February 27, 2001
Filed under ,
:Product: Report of Solar-Geophysical Activity
:Issued: 2001 Feb 27 2200 UT
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
#Space Environment Center and the U.S. Air Force.
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 058 Issued at 2200Z on 27 Feb 2001
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity was low.  Three weak C-class X-ray
flares occurred during the period.  An 11 degree filament (S16W09)
disappeared between 26/1545-27/1213 UTC.  New Region 9363 (S20W15)
was numbered today.
IB.  Solar Activity Forecast:  Solar activity is expected to be low.
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was quiet to active.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled for the next three days.
III.  Event Probabilities 28 Feb-02 Mar
Class M    10/10/10
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           27 Feb 131
Predicted   28 Feb-02 Mar  130/130/135
90 Day Mean        27 Feb 164
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Feb  005/010
Estimated Afr/Ap 27 Feb  015/012
Predicted Afr/Ap 28 Feb-02 Mar  008/008-008/008-005/005
VI.  Geomagnetic Activity Probabilities 28 Feb-02 Mar
A.  Middle Latitudes
Active                20/20/15
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                25/25/20
Minor storm           10/10/05
Major-severe storm    01/01/01

SpaceRef staff editor.