Viewing archive of Friday, 8 March 2013
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 2013 Mar 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 67 Issued at 2200Z on 08 Mar 2013IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (09 Mar,
10 Mar, 11 Mar).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 349 km/s at
08/1141Z. Total IMF reached 6 nT at 08/0752Z. The maximum southward
component of Bz reached -3 nT at 08/1807Z. Electrons greater than 2 MeV
at geosynchronous orbit reached a peak level of 1612 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (09 Mar, 10 Mar, 11
Mar).
III. Event Probabilities 09 Mar to 11 Mar
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Mar 115 Predicted 09 Mar-11 Mar 118/120/120 90 Day Mean 08 Mar 115
V. Geomagnetic A Indices
Observed Afr/Ap 07 Mar 002/003 Estimated Afr/Ap 08 Mar 002/003 Predicted Afr/Ap 09 Mar-11 Mar 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 09 Mar to 11 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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