Viewing archive of Sunday, 2 June 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 Jun 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 153 Issued at 2200Z on 02 Jun 2013IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
02/0520Z from Region 1762 (S29W22). There are currently 5 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 (03 Jun,
04 Jun, 05 Jun).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 822 km/s at 02/1127Z. Total IMF reached 14 nT at 01/2339Z. The
maximum southward component of Bz reached -10 nT at 02/0143Z. Electrons
greater than 2 MeV at geosynchronous orbit reached a peak level of 4708
pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (03 Jun) and quiet levels on
days two and three (04 Jun, 05 Jun).
III. Event Probabilities 03 Jun to 05 Jun
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Jun 111 Predicted 03 Jun-05 Jun 115/120/125 90 Day Mean 02 Jun 123
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jun 041/058 Estimated Afr/Ap 02 Jun 015/019 Predicted Afr/Ap 03 Jun-05 Jun 013/012-007/008-005/005
VI. Geomagnetic Activity Probabilities 03 Jun to 05 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 10% |
| Minor storm | 10% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 40% | 25% | 15% |
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