Vaata pühapäev, 6 detsember 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Dec 06 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 06 Dec 2015 until 08 Dec 2015
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
06 Dec 2015102019
07 Dec 2015103021
08 Dec 2015104019

Bulletin

Solar activity has been low over the past 24 hours. The largest recorded flares were two C1.9 class flares. NOAA Active Region (AR) 2463 (Dao Beta) has been most active, producing one of the C1.9 flares, peaking at 15:21 UT yesterday. AR 2463 has shown small amounts of flux emergence and is expected to continue to produce low-level activity. AR 2464 (Axx Alpha) rotated into view over the East limb and produced the other C1.9 class flare, peaking at 16:23 UT. No Earth directed CMEs have been observed in the past 24 hours. Solar activity is expected to be low. The solar wind speed has been slowly increasing from around 400 km /s to around 500 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 10 nT, and the Bz component has been largely negative, fluctuating between 0 and -10 nT. Geomagnetic conditions ranged between quiet and active (NOAA Kp 3-4, local K Dourbes 1-4). Conditions are expected to fluctuate between unsettled and active over the next couple of days due to a large positive polar coronal hole (CH), with a section extending to low latitudes. The leading Co-rotating Interaction Region (CIR) has probably been the source of increased activity over the past 12 hours, and the following High Speed Stream (HSS) will continue to enhance conditions in the next couple of days.

Today's estimated international sunspot number (ISN): 048, based on 12 stations.

Solar indices for 05 Dec 2015

Wolf number Catania///
10cm solar flux101
AK Chambon La Forêt029
AK Wingst020
Estimated Ap019
Estimated international sunspot number046 - Based on 13 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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