Prohlížíte si archiv středa 8. července 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2015 Jul 08 1230 UTC

SIDC Forecast

Sluneční erupce

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
08 Jul 2015	135	004
09 Jul 2015	138	007
10 Jul 2015	141	013

Bulletin

NOAA 2381 has simplified considerably, with the other seven sunspot regions relatively small and quiet. Four C1 flares were recorded: three produced by NOAA 2381, and one by an active region at the southeast limb. A small filament eruption was observed near disk center around 08:00UT. Based on currently available imagery, no Earth-directed coronal mass ejections (CME) have been observed.

C-class flares are expected, with still a small chance on an isolated M-class flare.

Solar wind speed declined further and is now between 350 and 400 km/s. Bz varied between -3 and +3 nT. A sector boundary crossing is anticipated for 08-09 July. A positive equatorial coronal hole has passed the central meridian and may affect the earth environment starting 10 July.

Quiet to unsettled geomagnetic conditions are expected, with a small chance on an active episode.

Today's estimated international sunspot number (ISN): 121, based on 10 stations.

Solar indices for 07 Jul 2015

Wolf number Catania	120
10cm solar flux	133
AK Chambon La Forêt	011
AK Wingst	///
Estimated Ap	008
Estimated international sunspot number	120 - Based on 29 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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