Viewing archive of Wednesday, 28 November 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Nov 28 1247 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
28 Nov 2018	067	004
29 Nov 2018	067	006
30 Nov 2018	066	008

Bulletin

There was no flaring activity reported during last 24 hours and we expect such a low level of activity to persist in the coming days. No Earth directed CMEs were reported during last 24 hours. The solar protons remained at the background level.

The slight increase of the interplanetary magnetic field magnitude (up to 7 nT) and simultaneous oscillations of its Bz component, together with the increase of the solar wind speed (up to 440 km/s) and the temperature, were observed starting from about 10 UT yesterday. These in situ observations indicate arrival of the structure in the solar wind, possibly associated with the small, negative polarity coronal hole which reached central meridian on November 23. The solar wind speed is incensing and it presently amounts about 390 km/s. The interplanetary magnetic field magnitude is about 4 nT. During last 24 hours geomagnetic conditions were quiet to unsettled, and we expect them to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 11 stations.

Solar indices for 27 Nov 2018

Wolf number Catania	000
10cm solar flux	068
AK Chambon La Forêt	011
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	000 - Based on 17 stations

Noticeable events summary

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

All times in UTC

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