Vaata esmaspäev, 24 juuli 2017 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2017 Jul 24 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 24 Jul 2017 until 26 Jul 2017
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
24 Jul 2017070015
25 Jul 2017070011
26 Jul 2017070008

Bulletin

Solar activity was at very low levels during the period. The visible solar disk is spotless. A bright faculae field rotated over the east limb. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected.

The earth environment remained under the influence of the high speed stream (HSS) from a positive polarity coronal hole (CH). Wind speeds gradually increased from an initial value near 560 km/s to about 700 km/s by 04UT, then decreased again to 600 km/s by the end of the period. Bz oscillated between -6 and +5 nT. The interplanetary magnetic field was directed away from the Sun.

The geomagnetic field was at quiet to unsettled levels, with an active episode during the 21-24UT interval recorded by both Dourbes and in Kp. Mostly quiet to unsettled geomagnetic conditions are expected, with a chance on another active episode as the influence of the CH HSS is expected to gradually subside over the next 1-2 days.

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

Solar indices for 23 Jul 2017

Wolf number Catania///
10cm solar flux071
AK Chambon La Forêt026
AK Wingst016
Estimated Ap017
Estimated international sunspot number000 - Based on 31 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

Kõik ajad UTC-s

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