Viewing archive of Monday, 15 June 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 Jun 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 166 Issued at 2200Z on 15 Jun 2015IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z 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
15/1032Z. There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on day one (16 Jun) and expected to be low
with a slight chance for an M-class flare on days two and three (17 Jun,
18 Jun).
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
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
633 km/s at 15/0126Z. Total IMF reached 8 nT at 14/2100Z. The maximum
southward component of Bz reached -4 nT at 15/1700Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 3307 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (16 Jun), quiet to
unsettled levels on day two (17 Jun) and quiet levels on day three (18
Jun).
III. Event Probabilities 16 Jun to 18 Jun
| Class M | 30% | 20% | 15% |
| Class X | 05% | 01% | 01% |
| Proton | 05% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 15 Jun 135 Predicted 16 Jun-18 Jun 130/125/120 90 Day Mean 15 Jun 126
V. Geomagnetic A Indices
Observed Afr/Ap 14 Jun 019/022 Estimated Afr/Ap 15 Jun 015/018 Predicted Afr/Ap 16 Jun-18 Jun 014/018-009/008-006/005
VI. Geomagnetic Activity Probabilities 16 Jun to 18 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 20% | 10% |
| Minor storm | 25% | 05% | 01% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 20% |
| Minor storm | 25% | 30% | 20% |
| Major-severe storm | 60% | 25% | 10% |
All times in UTC
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