Viewing archive of Tuesday, 4 August 2015
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2015 Aug 04 1230 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 | |
|---|---|---|
| 04 Aug 2015 | 110 | 008 |
| 05 Aug 2015 | 115 | 007 |
| 06 Aug 2015 | 120 | 006 |
Bulletin
Solar activity was very low with flaring restricted to B-class flares. All regions have a simple configuration (alpha or beta). NOAA active region 2396 showed some fast growth. A backsided filament eruption was followed by a slow, small CME with first measurement in LASCO-C2 at 13:25 UT. No Earth-directed CMEs were observed. Chances for strong flares remain low.
The solar wind speed has gradually decreased to 440 km/s. Geomagnetic conditions were mainly quiet and are expected to remain so.
Today's estimated international sunspot number (ISN): 082, based on 17 stations.Solar indices for 03 Aug 2015
| Wolf number Catania | /// |
| 10cm solar flux | 106 |
| AK Chambon La Forêt | 011 |
| AK Wingst | 009 |
| Estimated Ap | 008 |
| Estimated international sunspot number | 052 - Based on 35 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
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