Перегляд архіву вівторок, 3 вересня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Sep 03 1231 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
03 Sep 2019	069	010
04 Sep 2019	070	007
05 Sep 2019	070	007

Bulletin

Solar activity has been very low, no flares in past 24 h. NOAA AR 2748 went from beta to alpha magnetic field configuration. Solar activity is expected to remain low.

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 620 km/s with interplanetary magnetic field magnitude of 4 nT. The Earth is still inside the high speed solar wind from a positive polarity coronal hole. The solar wind speed ranged from 700 to 600 km/s in the past 24 h. Geomagnetic conditions were mostly unsettled to active both locally and at planetary levels (K Dourbes and Kp between 3 and 4), with an isolated peak of K Dourbes = 5 at 21:00 UT on September 2. Mostly unsettled conditions expected, active periods remain possible.

Today's estimated international sunspot number (ISN): 012, based on 15 stations.

Solar indices for 02 Sep 2019

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	029
AK Wingst	024
Estimated Ap	026
Estimated international sunspot number	014 - Based on 28 stations

Noticeable events summary

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

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