Viewing archive of Tuesday, 15 January 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jan 15 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
15 Jan 2019	070	007
16 Jan 2019	070	017
17 Jan 2019	070	013

Bulletin

Solar X-ray flux remained below B level throughout the period. There are no active regions on disk and X-ray flux is expected to continue to be below C level.

No earth directed CMEs have been recorded.

The proton flux levels were at background values and are expected to remain so.

Solar wind was close to nominal with Solar wind speed recovering from around 400 km/s at the start of the period to a minimum of 330 km/s, while presently around 360 km/s. Total magnetic field was in the 2-8.5 nT range with Bz variable. The magnetic field phi angle was in the negative sector. Solar wind may become somewhat enhanced again tomorrow under the possible influence of the coronal hole that passed central meridian midnight January 12/13.

Geomagnetic conditions were quiet to unsettled (local K Dourbes and NOAA Kp 1-3). Quiet to unsettled conditions are expected over the next days with a possibility for an isolated active period.

Today's estimated international sunspot number (ISN): 000, based on 14 stations.

Solar indices for 14 Jan 2019

Wolf number Catania	///
10cm solar flux	070
AK Chambon La Forêt	013
AK Wingst	010
Estimated Ap	007
Estimated international sunspot number	000 - Based on 30 stations

Noticeable events summary

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

All times in UTC

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