Перегляд архіву вівторок, 29 січня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jan 29 1230 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

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

Сонячні протони

Quiet

	10cm flux	Ap
29 Jan 2019	076	007
30 Jan 2019	076	011
31 Jan 2019	076	017

Bulletin

NOAA AR 2733 produced a C1.9 flare, at 10:34 UT. Solar activity is expected to remain at low levels with more C-class flares possible from NOAA AR 2733 (beta magnetic field configuration) as it rotates over the west limb.

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 360 km/s with interplanetary magnetic fields of 3 nT. Geomagnetic conditions have been quiet. The fast solar wind associated with a negative polarity equatorial coronal hole is expected to arrive to the Earth within 48 hours, causing disturbed conditions (with k values possibly reaching up to 5). Quiet conditions are expected until then.

Today's estimated international sunspot number (ISN): 014, based on 19 stations.

Solar indices for 28 Jan 2019

Wolf number Catania	019
10cm solar flux	076
AK Chambon La Forêt	004
AK Wingst	001
Estimated Ap	001
Estimated international sunspot number	018 - Based on 28 stations

Noticeable events summary

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

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