Vaata esmaspäev, 29 august 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 Aug 29 1327 UTC

SIDC Forecast

Valid from 1230 UTC, 29 Aug 2016 until 31 Aug 2016
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
29 Aug 2016087009
30 Aug 2016089011
31 Aug 2016091013

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a C2.2 class flare. Active Region (AR) 2583 (Macintosh class:Dao; Mag. type:Beta) has been most active, producing several C class flares, including the C2.2 class flare, which peaked at 03:34 UT. All other ARs have shown low levels of activity. AR 2583 and 2580 (Hrx; Alpha) have shown evidence of flux emergence, separation and cancellation in HMI magnetogram observations, this may increase flaring activity. However, the region is approaching the West solar limb. A filament channel is currently located near disk center, but appears stable. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a high probability of C-class flares and a low probability of M-class flares. The solar wind speed has fluctuated between 380 and 320 km/s over the past 24 hours. The total magnetic field strength has remained around 4 nT throughout yesterday and this morning, however it jumped toward 10 nT in the last hour. The Bz component was largely positive, fluctuating between -5 and +10 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. A small trans- equatorial coronal hole located at central latitudes, N01W50, is expected to enhance solar wind speeds at Earth due to its associated high-speed stream (HSS). This may enhance geomagnetic activity. A large positive polarity Northern polar coronal hole located near central longitudes extending toward low latitudes is expected to enhance solar wind speeds in coming days. Geomagnetic activity is expected to be slightly enhanced later today and again later in the week.

Today's estimated international sunspot number (ISN): 065, based on 09 stations.

Solar indices for 28 Aug 2016

Wolf number Catania///
10cm solar flux///
AK Chambon La Forêt///
AK Wingst///
Estimated Ap///
Estimated international sunspot number062 - 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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