Viewing archive of Friday, 6 September 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Sep 06 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
06 Sep 2019	068	007
07 Sep 2019	068	013
08 Sep 2019	068	007

Bulletin

No active regions visible on the disk. Solar activity has been very low, no flares in the past 24 h. The situation is not expected to change in the next 48 h.

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 500 km/s with interplanetary magnetic field magnitude of 5 nT. Geomagnetic conditions were mostly quiet to unsettled, K and Kp reached 4 briefly (at 03:00 UT for Kp and at 07:00 UT for K Dourbes) due to slightly high speed solar wind (~550 km/s) with negative Bz (up to -5 nT) lasting for several hours. The fast solar wind stream associated with a negative polarity coronal hole is expected to arrive to the Earth on September 7. Unsettled to active geomagnetic conditions can be expected.

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

Solar indices for 05 Sep 2019

Wolf number Catania	000
10cm solar flux	068
AK Chambon La Forêt	019
AK Wingst	015
Estimated Ap	016
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

All times in UTC

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