Перегляд архіву вівторок, 14 січня 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2020 Jan 14 1231 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
14 Jan 2020	071	007
15 Jan 2020	071	009
16 Jan 2020	070	006

Bulletin

Solar activity is very low and there were no flares reported during last 24 hours. We expect such a low level of flaring activity to persist in the coming hours. However, the eruption was observed at about 09:55 UT this morning from the decaying active region (Catania sunspot group 27) situated close to the disc center. Although no flares were reported the well-defined coronal dimming and the associated EIT wave indicate existence of the associated CME. As the eruption appeared close to the solar disc center, the associated CME is possibly Earth directed. More will be reported when coronagraph data become available. The solar protons remained at the background level.

Earth is still within the slow solar wind with the speed of about 290 km/s and the interplanetary magnetic field magnitude is 5 nT. The solar wind originating from the positive polarity coronal hole (reached the central meridian on January 10), might arrive to Earth in the coming hours and induce the unsettled conditions. Presently geomagnetic conditions are quiet and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 11 stations.

Solar indices for 13 Jan 2020

Wolf number Catania	000
10cm solar flux	072
AK Chambon La Forêt	///
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	000 - Based on 22 stations

Noticeable events summary

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

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