Перегляд архіву четвер, 2 січня 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2020 Jan 02 1230 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
02 Jan 2020	072	005
03 Jan 2020	072	004
04 Jan 2020	072	004

Bulletin

A new (still unnumbered) sunspot region has appeared near the southeast limb. This alpha region has generated a B3 flare peaking at 23:47 UT on January 1. The chance for a C flare in the next 24 hours is estimated at only 5%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The solar wind speed near Earth as registered by ACE varied between about 295 and 355 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was directed predominantly towards the Sun, and its magnitude varied between about 0 and 6 nT. Bz was never below -5 nT for extended intervals. Nominal solar wind conditions are expected in the next 24 hours.

Quiet to unsettled geomagnetic conditions (K Dourbes between 0 and 3; NOAA Kp between 0 and 1) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on January 2, 3 and 4.

Today's estimated international sunspot number (ISN): 012, based on 14 stations.

Solar indices for 01 Jan 2020

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	///
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	007 - Based on 21 stations

Noticeable events summary

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

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