Перегляд архіву понеділок, 15 липня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jul 15 1230 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

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

Сонячні протони

Quiet

	10cm flux	Ap
15 Jul 2019	066	013
16 Jul 2019	067	007
17 Jul 2019	068	006

Bulletin

Solar activity was at very low levels. The Sun remains spotless and no flares have been observed. No Earth directed coronal mass ejections (CME) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain at very low levels.

The solar wind speed varied between approximately 400 and 500 km/s (ACE). Bz varied between -7 and +5 nT. The interplanetary magnetic field was predominantly directed away from the Sun (positive sector). Quiet geomagnetic conditions were observed, with the Kp index (NOAA) and the local K index (Dourbes) ranging between 1-2 over the past 24 hours.

Quiet to unsettled geomagnetic conditions are expected with the possibility of isolated active conditions later today (July 15) or tomorrow (July 16), due to the arrival of the solar wind stream associated with the negative polarity equatorial coronal hole which began to transverse the central meridian on July 11.

Today's estimated international sunspot number (ISN): 000, based on 09 stations.

Solar indices for 14 Jul 2019

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	013
AK Wingst	008
Estimated Ap	006
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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