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Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2019 Oct 29 1230 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

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

Солнечные протоны

Quiet

	10cm flux	Ap
29 Oct 2019	069	011
30 Oct 2019	070	014
31 Oct 2019	071	007

Bulletin

No active regions visible on the disk. Solar activity has been very low, no flares in the past 24 h. The small bright region that rotated into view yesterday is only a plage without sunspots. Low solar activity expected.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 400 km/s with interplanetary magnetic field magnitude of 4 nT. Geomagnetic conditions were quiet to unsettled. Late on October 29 or on October 30, the arrival of the CME from October 25 and a high speed stream from a negative polarity coronal hole may cause an increase in geomagnetic conditions (most likely not greater than K = 4).

Today's estimated international sunspot number (ISN): 000, based on 19 stations.

Solar indices for 28 Oct 2019

Wolf number Catania	000
10cm solar flux	069
AK Chambon La Forêt	020
AK Wingst	016
Estimated Ap	015
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

Все время в UTC

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