Vaata reede, 18 jaanuar 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Jan 18 1146 UTC

SIDC Forecast

Valid from 1230 UTC, 18 Jan 2013 until 20 Jan 2013
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
18 Jan 2013120007
19 Jan 2013119007
20 Jan 2013115016

Bulletin

Solar activity has been quiet with only two small C flares with the largest one a C2.5 flare originating from NOAA 1652. Solar activity is expected to remain quiet with possibly an isolated C flare. Geomagnetic activity reached storm level on January 17th between 15:00 UT and 18:00 UT. Ace IMF data of this period shows a jump of the magnetic field strength from 5 nT to 15 nT with a negative Bz component. There was no shock detected in the ACE solar wind data. This geomagnetic activity is likely related to the slow CME of Sunday January 13th 13:00 UT (as seen in LASCO C2). Geomagnetic activity is possible to rise in the night of January 19th- 20th due to the CME of January 16th 19:12 UT (as seen in LASCO C2).

Today's estimated international sunspot number (ISN): 028, based on 03 stations.

Solar indices for 17 Jan 2013

Wolf number Catania///
10cm solar flux123
AK Chambon La Forêt026
AK Wingst016
Estimated Ap017
Estimated international sunspot number042 - Based on 10 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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