Vaata neljapäev, 21 märts 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Mar 21 1158 UTC

SIDC Forecast

Valid from 1230 UTC, 21 Mar 2013 until 23 Mar 2013
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
21 Mar 2013107012
22 Mar 2013107002
23 Mar 2013110001

Bulletin

Solar activity was quiet for the past 24 hours, with only a C1.0 flare from NOAA AR1692. Solar activity is expected to remain quiet with a slight chance for an isolated C-flare. On March 20 UT ACE measured a jump in the interplanetary magnetic field to 11 nT (starting at 12h UT) and in the solar wind speed to 732 km/s, probably due to the arrival of the CME of March 17. The solar wind speed and interplanetary magnetic field are now returning to stable values, with a current speed of 428 km/s and a magnetic field of 6 nT. Geomagnetic conditions in Dourbes reached active levels (K=4) from 0 to 6 UT this morning. Geomagnetic activity is expected to return to quiet levels and remain so for the next 48 hours.

Today's estimated international sunspot number (ISN): 032, based on 13 stations.

Solar indices for 20 Mar 2013

Wolf number Catania///
10cm solar flux108
AK Chambon La Forêt032
AK Wingst011
Estimated Ap011
Estimated international sunspot number036 - Based on 15 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmRadio burst typesCatania/NOAA
Puuduvad

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

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