Viewing archive of Thursday, 7 March 2002
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2002 Mar 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 066 Issued at 2200Z on 07 Mar 2002IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity was at low levels. Several minor
C-class flares with no optical correlation occurred during the
period. The largest appears to be a C6 that was in progress at the
time of this writing. Region 9851 (S02W24) has shown penumbral
growth in the lead complex of the spot group today. Region 9845
(N17W86) has almost completely exited the west limb. The rest of
the spotted groups have been unchanged or in varying degrees of weak
decay. New Region 9864 (N18E69) was numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at
low levels.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field activity was at quiet to active levels. An
isolated minor storm condition was observed at Fredericksburg at
06/2100 UTC, believed to be a result of a large, transequatorial
coronal hole during it's waning stage. The greater than 2 MeV
electron flux at geosynchronous orbit has been elevated throughout
the period following the passage of the high speed stream.
IIB. Geophysical Activity Forecast
The geomagnetic field activity
is expected to be at quiet to unsettled levels through the forecast
period.
III. Event Probabilities 08 Mar to 10 Mar
| Class M | 20% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Mar 180 Predicted 08 Mar-10 Mar 180/175/175 90 Day Mean 07 Mar 219
V. Geomagnetic A Indices
Observed Afr/Ap 06 Mar 016/015 Estimated Afr/Ap 07 Mar 009/010 Predicted Afr/Ap 08 Mar-10 Mar 008/010-008/010-008/008
VI. Geomagnetic Activity Probabilities 08 Mar to 10 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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