Перегляд архіву вівторок, 25 червня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jun 25 1233 UTC

SIDC Forecast

Сонячні спалахи

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
25 Jun 2019	068	004
26 Jun 2019	068	011
27 Jun 2019	067	005

Bulletin

There are presently two numbered active regions (NOAA AR 2742 and 2743) observed on the visible side of the solar disc. Nevertheless the solar flaring is still very low without C-class or even B-class flares reported. We do not expect change of the solar activity in the coming hours. There were no Earth directed CMEs reported and the solar protons remained at the background level.

The Earth is still inside the slow solar wind with the speed of about 350 km/s. The interplanetary magnetic field magnitude amounts about 4 nT. The fast solar wind associated with the patchy negative polarity coronal hole, which reached central meridian on June 21, is expected to arrive to the Earth later today or tomorrow. The geomagnetic conditions are presently quiet. We expect quiet geomagnetic conditions in the coming hours, with possible isolated intervals of unsettled conditions due to expected fast solar wind arrival.

Today's estimated international sunspot number (ISN): 011, based on 20 stations.

Solar indices for 24 Jun 2019

Wolf number Catania	011
10cm solar flux	068
AK Chambon La Forêt	008
AK Wingst	006
Estimated Ap	006
Estimated international sunspot number	011 - Based on 29 stations

Noticeable events summary

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

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