Viewing archive of Wednesday, 9 January 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Jan 09 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 09 Jan 2019 until 11 Jan 2019
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

No forecast

10cm fluxAp
09 Jan 2019070005
10 Jan 2019070004
11 Jan 2019070003

Bulletin

The solar activity has been quiet over the past 24 hours. The X-ray flux remains below B-level, and the visible solar disc is spotless. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

The solar wind parameters continued to slowly return toward nominal values. The wind speed decreased from 455 to 395 km/s. Total interplanetary magnetic field strength was below 6 nT. The southward magnetic component remained between -4.5 and 4.7 nT. The solar wind speed is expected to continue to decrease and remain at ambient background and slow solar wind speed regime.

The geomagnetic conditions were quiet and are expected to remain quiet during the following next 24-hour period.

Today's estimated international sunspot number (ISN): 000, based on 18 stations.

Solar indices for 08 Jan 2019

Wolf number Catania000
10cm solar flux071
AK Chambon La Forêt010
AK Wingst006
Estimated Ap005
Estimated international sunspot number000 - Based on 22 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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