Viewing archive of Friday, 12 January 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jan 12 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
12 Jan 2018	070	009
13 Jan 2018	069	015
14 Jan 2018	068	006

Bulletin

Solar activity remains to be extremely low with no C-class or even B-class flares reported. We expect this level of the flaring activity to persist in the coming hours. During last 24 hours there were no Earth directed CMEs reported, and the solar protons remained at background level.

The Earth is presently inside the slow solar wind with the speed of 340 km/s. The interplanetary magnetic field magnitude is low and it amounts 3 nT. The geomagnetic conditions are quiet and we expect them to remain so in the coming hours. Starting from the late evening today and during the day tomorrow, we might expect unsettled to possibly active geomagnetic conditions due to the expected arrival of the fast solar wind associated with the coronal hole which reached central meridian in the morning of January 09.

Today's estimated international sunspot number (ISN): 000, based on 09 stations.

Solar indices for 11 Jan 2018

Wolf number Catania	024
10cm solar flux	071
AK Chambon La Forêt	006
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	011 - Based on 10 stations

Noticeable events summary

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

All times in UTC

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