Viewing archive of Wednesday, 13 January 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Jan 13 1253 UTC

SIDC Forecast

Valid from 1230 UTC, 13 Jan 2016 until 15 Jan 2016
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
13 Jan 2016104014
14 Jan 2016100006
15 Jan 2016098008

Bulletin

Solar activity is very low, with only few B-class flares reported during last 24 hours. The C-class flares are still possible but not very probable. No Earth directed CMEs were observed in the last 24 hours. Solar wind speed is currently about 500 km/s and the interplanetary magnetic field magnitude is about 7 nT. Due to the longer interval of the negative value of the Bz component of the interplanetary magnetic field (down to - 7 nT), active geomagnetic conditions were reported early this morning (NOAA reported a Kp =4 and Dourbes reported K=4). Geomagnetic conditions are currently quiet and are expected to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 036, based on 17 stations.

Solar indices for 12 Jan 2016

Wolf number Catania042
10cm solar flux106
AK Chambon La Forêt023
AK Wingst015
Estimated Ap015
Estimated international sunspot number040 - Based on 25 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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