Vaata neljapäev, 20 juuni 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Jun 20 1251 UTC

SIDC Forecast

Valid from 1230 UTC, 20 Jun 2013 until 22 Jun 2013
Päikesepursked ehk loited

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
20 Jun 2013120007
21 Jun 2013120014
22 Jun 2013120021

Bulletin

The past 24 hours were mostly quiet, with 2 moderate C-class flares. The first one, a C1.1 event, took place in NOAA AR 1776, on June 19, 1709 UT (peak time), and was associated with dimmings. A faint CME is associated with this event and is first observed by LASCO C2 around 18:48 UT. It is going essentially southward, at slow project speed (~300 km/s). We do not expect much geomagnetic effect, and if any not before early June 24. The second one (C1.9) occurred in Catania region 10 (S15E89), on June 20, 0920 UT (peak time). Geomagnetic activity is expected to be active by the end of June 21 - beginning of June 22, as a coronal hole becomes geoeffective. Current conditions are quiet. ACE observations show some minor excursions of the Bz component of the interplanetary magnetic field down to -5nT, associated with a small shock-like structure observed late on June 19.

Today's estimated international sunspot number (ISN): 085, based on 12 stations.

Solar indices for 19 Jun 2013

Wolf number Catania120
10cm solar flux123
AK Chambon La Forêt012
AK Wingst008
Estimated Ap006
Estimated international sunspot number082 - Based on 25 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

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