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Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2019 Jun 28 1230 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

Quiet (A<20 and K<4)

Солнечные протоны

Quiet

	10cm flux	Ap
28 Jun 2019	068	006
29 Jun 2019	068	006
30 Jun 2019	068	007

Bulletin

Solar activity is very low. Catania sunspot group 19 (NOAA AR 2743) rotated behind the west solar limb. New active region is rotating to the visible side of Sun from the behind of the east solar limb and it could possibly increase the level of solar activity in the coming days. However we do not expect the C-class or larger flares in the coming hours. There were no Earth directed CMEs and the solar protons remained at the background level.

The solar wind speed is presently 340 km/s and the interplanetary magnetic field magnitude is about 4 nT. Small, negative polarity coronal hole (between S20 and S40) has reached the central meridian in the evening of June 27. The associated fast solar wind might arrive to the Earth on July 01. The geomagnetic conditions are presently quiet and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 23 stations.

Solar indices for 27 Jun 2019

Wolf number Catania	000
10cm solar flux	067
AK Chambon La Forêt	008
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	000 - Based on 35 stations

Noticeable events summary

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

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