Viewing archive of Sunday, 27 June 2010
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 2010 Jun 27 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 178 Issued at 2200Z on 27 Jun 2010IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z Solar activity has been very low. New Region 1084
(S19E59) was numbered today and produced a B1 x-ray event at
27/0317. No other activity of note was observed.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic field has been quiet to unsettled, with an isolated
active period at 27/0600-0900Z. Solar wind data observed at the ACE
spacecraft indicates the continuation of a high speed solar wind
stream, with wind speeds increasing to about 500 km/s at the end of
the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominately unsettled with isolated active periods
for days one thru three (28-30 June).
III. Event Probabilities 28 Jun to 30 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Jun 073 Predicted 28 Jun-30 Jun 073/074/075 90 Day Mean 27 Jun 075
V. Geomagnetic A Indices
Observed Afr/Ap 26 Jun 009/015 Estimated Afr/Ap 27 Jun 009/015 Predicted Afr/Ap 28 Jun-30 Jun 012/012-010/010-010/010
VI. Geomagnetic Activity Probabilities 28 Jun to 30 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 20% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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