Viewing archive of Tuesday, 17 September 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Sep 17 1229 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 17 Sep 2013 | 093 | 011 |
| 18 Sep 2013 | 093 | 008 |
| 19 Sep 2013 | 093 | 007 |
Bulletin
Solar activity is very low, with the background X-ray flux of a low B-class level. No changes of solar activity are foreseen in the following 48 hours. The Earth is still inside a slow solar wind flow with the speed of about 350 km/s. The interplanetary magnetic field magnitude is 6 nT. The geomagnetic conditions are quiet to moderate and expected to remain so. The possible arrival of the fast speed stream from the small equatorial coronal hole, during the following hours, is not expected to result in the change of the current geomagnetic conditions.
Today's estimated international sunspot number (ISN): 023, based on 09 stations.Solar indices for 16 Sep 2013
| Wolf number Catania | /// |
| 10cm solar flux | 095 |
| AK Chambon La Forêt | 009 |
| AK Wingst | 004 |
| Estimated Ap | 003 |
| Estimated international sunspot number | 017 - Based on 18 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Whitehorse, YT, Yellowknife, NTAnchorage, AK, Fairbanks, AK, Juneau, AK
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