Viewing archive of Tuesday, 3 February 2009
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 2009 Feb 03 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 034 Issued at 2200Z on 03 Feb 2009IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity was very low. The disk was spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field was quiet. A discontinuity in the solar wind
was seen at ACE at about 1910 UTC, when the speed increased by 60
km/s (to 360 km/s) and the magnetic field vector turned southward to
about -8 nT for a short time. A sudden impulse at 2014 UTC at
Boulder followed, measuring 10 nT. The field remained quiet after
the impulse.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet.
III. Event Probabilities 04 Feb to 06 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Feb 069 Predicted 04 Feb-06 Feb 070/070/070 90 Day Mean 03 Feb 069
V. Geomagnetic A Indices
Observed Afr/Ap 02 Feb 000/002 Estimated Afr/Ap 03 Feb 001/003 Predicted Afr/Ap 04 Feb-06 Feb 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 04 Feb to 06 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 01% | 01% | 01% |
| 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% |
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