Перегляд архіву вівторок, 19 березня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Mar 19 1230 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

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

Сонячні протони

Quiet

	10cm flux	Ap
19 Mar 2019	070	015
20 Mar 2019	071	007
21 Mar 2019	072	007

Bulletin

There is one active region visible on the solar disk (NOAA 12735 with beta magnetic field configuration). No C-class flares in past 24 h. Solar activity is expected to remain low.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 375 km/s with interplanetary magnetic fields of 6 nT. Geomagnetic conditions have been quiet in the past 24 h. In the last hours, density and interplanetary magnetic field started to increase, together with a change of negative to positive IMF polarity. These are most likely signs of the compression region in front of the high speed solar wind stream expected for today. Unsettled to active geomagnetic conditions can be expected (with possible isolated minor storm conditions).

Today's estimated international sunspot number (ISN): 015, based on 22 stations.

Solar indices for 18 Mar 2019

Wolf number Catania	///
10cm solar flux	070
AK Chambon La Forêt	006
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	013 - Based on 21 stations

Noticeable events summary

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

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