Vaata reede, 15 november 2019 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2019 Nov 15 1230 UTC

SIDC Forecast

Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

	10cm flux	Ap
15 Nov 2019	070	003
16 Nov 2019	070	006
17 Nov 2019	070	018

Bulletin

The solar activity has been at very low levels over the past 24 hours. The Sun is currently spotless and the X-ray flux remains below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind parameters show nominal values: The total magnetic field is below 5 nT, the solar wind speed remained below 350 km/s, and the southern component of the magnetic filed remained close to zero. The solar wind parameters are expected to remain at the nominal level within the next 24-hour period. Enhancements of the solar wind parameters are expected to start later on Nov 16 or 17 due to the effect of the negative polarity coronal hole high-speed streams, which has reached the central meridian on Nov 13.

The solar wind parameters show nominal values: The total magnetic field is below 4.5 nT, the solar wind speed remained 350 km/s or below, and the southern component of the magnetic filed remained close to zero. The solar wind parameters are expected to remain at the nominal level within the next 24-hour period. Enhancements of the solar wind parameters are expected to start later on Nov 16-17 due to the influence of the negative polarity coronal hole high-speed streams, which has reached the central meridian on Nov 13.

Quiet geomagnetic conditions were observed over the past 24 hours. It is expected to remain so for the next 24h-period until the arrival of the the high-speed stream influence due to the coronal hole later in Nov 16-17, where more active conditions are expected.

Today's estimated international sunspot number (ISN): 000, based on 10 stations.

Solar indices for 14 Nov 2019

Wolf number Catania	000
10cm solar flux	070
AK Chambon La Forêt	004
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	000 - Based on 21 stations

Noticeable events summary

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

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