Prohlížíte si archiv pondělí 25. července 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Jul 25 1245 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Sluneční protony

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10cm flux	Ap
25 Jul 2016	082	016
26 Jul 2016	080	007
27 Jul 2016	078	007

Bulletin

One M class flare was recorded in the past 24 h: M1.9 peaking at 17:43 UT on July 25 from NOAA AR 2567. As this AR rotated over the west limb, the visible Sun became spotless and flaring activity greatly reduced. C-class flares can still be expected from this AR in the coming hours. Geomagnetic conditions were mostly active during past 24 h due to (most likely) a small ICME that reached ACE around 15:00 UT on July 24 (corresponding to a CME that erupted on July 20). Solar wind speed is currently at 450 km/s with interplanetary magnetic field magnitude of 5 nT. Active conditions are possible within 48h in response to the arrival of the high speed stream from a northern coronal hole, as well as of the low- probability glancing blow from the 23 July CME.

Today's estimated international sunspot number (ISN): 000, based on 24 stations.

Solar indices for 24 Jul 2016

Wolf number Catania	///
10cm solar flux	082
AK Chambon La Forêt	033
AK Wingst	018
Estimated Ap	018
Estimated international sunspot number	014 - Based on 31 stations

Noticeable events summary

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

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