Viewing archive of Saturday, 7 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 07 2240 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 66 Issued at 2200Z on 07 Mar 2015IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
06/2111Z from Region 2297 (S17E81). 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 (08 Mar, 09 Mar, 10 Mar).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
585 km/s at 07/1034Z. Total IMF reached 10 nT at 06/2237Z. The maximum
southward component of Bz reached -8 nT at 06/2321Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 107 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and three (08 Mar, 10 Mar)
and unsettled to active levels on day two (09 Mar).
III. Event Probabilities 08 Mar to 10 Mar
| Class M | 40% | 40% | 40% |
| Class X | 10% | 10% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Mar 138 Predicted 08 Mar-10 Mar 140/140/140 90 Day Mean 07 Mar 142
V. Geomagnetic A Indices
Observed Afr/Ap 06 Mar 009/008 Estimated Afr/Ap 07 Mar 016/020 Predicted Afr/Ap 08 Mar-10 Mar 009/012-012/015-008/010
VI. Geomagnetic Activity Probabilities 08 Mar to 10 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 35% | 30% |
| Minor storm | 10% | 15% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 40% | 45% | 40% |
All times in UTC
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