Viewing archive of Sunday, 20 October 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Oct 20 1402 UTC
SIDC Forecast
Solar flares
Eruptive (C-class flares expected, probability >=50%)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 20 Oct 2013 | 133 | 007 |
| 21 Oct 2013 | 135 | 007 |
| 22 Oct 2013 | 140 | 007 |
Bulletin
Only C-class flares in past 24h, more are expected. The strongest was a C2.9 at 08:40 UT from NOAA AR 1868. NOAA AR 1875 has a beta-gamma configuration and could produce M-class flares. Geomangetic conditions have been quiet and are expected to remain so. There are small probabilities that the fast solar wind from a coronal hole at high northern latitudes, and the effects of the halo CME from October 16 could affect geomagnetic conditions in the next 48h.
Today's estimated international sunspot number (ISN): 080, based on 14 stations.Solar indices for 19 Oct 2013
| Wolf number Catania | /// |
| 10cm solar flux | 133 |
| AK Chambon La Forêt | 007 |
| AK Wingst | 002 |
| Estimated Ap | 002 |
| Estimated international sunspot number | 092 - 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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