Viewing archive of Thursday, 9 March 2017
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2017 Mar 09 1231 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Active conditions expected (A>=20 or K=4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 09 Mar 2017 | 070 | 013 |
| 10 Mar 2017 | 070 | 013 |
| 11 Mar 2017 | 071 | 008 |
Bulletin
Solar activity was very low. There are currently no sunspot regions on the visible solar hemisphere. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.
Quiet flaring conditions are expected to continue.
Earth remained under the waning influence of the high speed stream (HSS) from the negative polarity coronal hole (CH). Solar wind speed varied between 570 and 510 km/s, ending the period near 550 km/s. Bz fluctuated between -5 nT and +4 nT. The interplanetary magnetic field was directed towards the Sun.
The geomagnetic field was at quiet to active levels. Mostly quiet to unsettled conditions are expected, with still a chance on an active episode.
Today's estimated international sunspot number (ISN): 000, based on 11 stations.Solar indices for 08 Mar 2017
| Wolf number Catania | /// |
| 10cm solar flux | 071 |
| AK Chambon La Forêt | 025 |
| AK Wingst | 014 |
| Estimated Ap | 014 |
| Estimated international sunspot number | 000 - Based on 21 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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