Viewing archive of Monday, 9 March 2015
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 2015 Mar 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 68 Issued at 2200Z on 09 Mar 2015IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M4 event observed at
09/1433Z from Region 2297 (S16E39). There are currently 1 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (10 Mar, 11 Mar, 12 Mar).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
595 km/s at 08/2325Z. Total IMF reached 5 nT at 08/2348Z. The maximum
southward component of Bz reached -3 nT at 09/2050Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 1148 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (10 Mar,
11 Mar, 12 Mar). Protons have a slight chance of crossing threshold on
days one, two, and three (10 Mar, 11 Mar, 12 Mar).
III. Event Probabilities 10 Mar to 12 Mar
| Class M | 40% | 40% | 40% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Mar 123 Predicted 10 Mar-12 Mar 125/130/130 90 Day Mean 09 Mar 142
V. Geomagnetic A Indices
Observed Afr/Ap 08 Mar 007/012 Estimated Afr/Ap 09 Mar 009/012 Predicted Afr/Ap 10 Mar-12 Mar 008/008-008/008-008/008
VI. Geomagnetic Activity Probabilities 10 Mar to 12 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 25% | 25% | 25% |
All times in UTC
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