Viewing archive of Monday, 29 July 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Jul 29 1246 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 | |
|---|---|---|
| 29 Jul 2013 | 107 | 014 |
| 30 Jul 2013 | 107 | 011 |
| 31 Jul 2013 | 107 | 004 |
Bulletin
X-ray background is in the B-level. A new sunspot group emerged in the northern hemisphere, left to NOAA AR 1801. This new appearance might trigger C-flare activity. The solar wind speed is around 400 km/s. Bz is around -2/3 nT. The geomagnetic index K measured in Dourbes, Belgium reached values up to 4 this morning. We expect although quiet to unsettled conditions for the coming 48 hours.
Today's estimated international sunspot number (ISN): 066, based on 15 stations.Solar indices for 28 Jul 2013
| Wolf number Catania | /// |
| 10cm solar flux | 109 |
| AK Chambon La Forêt | 009 |
| AK Wingst | 009 |
| Estimated Ap | 008 |
| Estimated international sunspot number | 048 - Based on 23 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
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