Vaata laupäev, 11 mai 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 May 11 1126 UTC

SIDC Forecast

Valid from 1230 UTC, 11 May 2013 until 13 May 2013
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
11 May 2013125003
12 May 2013125014
13 May 2013125007

Bulletin

Solar activity has been active during the past 24 hours, featuring four C flares and one M1.3 flare. The M flare was produced by AR 11745 (which also released the majority of the C flares) and had its peak around 12:56 UT on May 10. More C flares and even M flares are likely within the next 48 hours, especially from NOAA AR 11745. In the last 24 hours, the IMF has been steady around 4 nT, while solar wind speeds have decreased from about 440 and to 390 km/s. On May 12, a weak coronal hole high speed stream may cause solar wind speeds to increase again up to 500 km/s. Geomagnetic activity has been at quiet levels (K Dourbes between 0 and 3; NOAA Kp between 0 and 2) during the past 24 hours. Quiet geomagnetic conditions (K Dourbes < 4) are expected for May 11 to 13, with a chance for active levels (K Dourbes = 4) on May 12, due to a weak coronal hole high speed stream.

Today's estimated international sunspot number (ISN): 087, based on 06 stations.

Solar indices for 10 May 2013

Wolf number Catania145
10cm solar flux125
AK Chambon La Forêt006
AK Wingst005
Estimated Ap004
Estimated international sunspot number081 - Based on 15 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmRadio burst typesCatania/NOAA
Puuduvad

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

Kõik ajad UTC-s

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