Vaata pühapäev, 22 mai 2016 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2016 May 22 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 22 May 2016 until 24 May 2016
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
22 May 2016099015
23 May 2016098012
24 May 2016099012

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a C1.0 class flare, produced by Active Region (AR) 2546 (Mcintosh class:Cho; Mag. type:Beta), peaking at 14:00 UT yesterday. AR 2544 has rotated over the solar limb. All other ARs have been quiet. Solar protons have remained at background levels over the past 24 hours. There have been no Earth directed CMEs detected. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares. The solar wind speed has been slowly increasing from around 450 to 600 km/s over the past 24 hours. The total magnetic field strength has slowly decreased from 10 to 5 nT. The Bz component fluctuated between -6 and +8 nT, but has been largely positive this morning. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. A large Northern positive polar coronal hole is currently positioned in the Western hemisphere of the Sun that may enhance solar wind speeds at the Earth.

Today's estimated international sunspot number (ISN): 021, based on 13 stations.

Solar indices for 21 May 2016

Wolf number Catania///
10cm solar flux098
AK Chambon La Forêt028
AK Wingst020
Estimated Ap021
Estimated international sunspot number018 - Based on 25 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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