Viewing archive of Monday, 29 January 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jan 29 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 29 Jan 2018 until 31 Jan 2018
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
29 Jan 2018069007
30 Jan 2018069017
31 Jan 2018070007

Bulletin

Solar activity was low, no C-class flares in past 24 h. The situation is not expected to change, as there are no active regions on disk.

Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed.

Solar wind speed is at 345 km/s with interplanetary magnetic field magnitude of 6 nT. Geomagnetic conditions have been quiet to unsettled and are expected to remain so. Isolated active periods are possible in the next 48 h, due to the possible arrival of moderately fast solar wind streams associated with diffuse coronal holes.

Today's estimated international sunspot number (ISN): 000, based on 12 stations.

Solar indices for 28 Jan 2018

Wolf number Catania///
10cm solar flux069
AK Chambon La Forêt009
AK Wingst005
Estimated Ap004
Estimated international sunspot number000 - Based on 23 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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