Vaata reede, 13 märts 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Mar 13 1247 UTC

SIDC Forecast

Valid from 1230 UTC, 13 Mar 2015 until 15 Mar 2015
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
13 Mar 2015124009
14 Mar 2015122010
15 Mar 2015120011

Bulletin

Over the past 24 hours there were several C-class flares and 4 M-class flares which were produced by NOAA AR (Active Region) 2297, which is currently located at S20, and is classified as a Beta-Gamma-Delta region under the Mount Wilson magnetic classification system. The largest flares recorded over the past 24 hours, all produced by AR 2297, were an M4.2 flare on 2015-Mar-12 peaking at 14:08UT, an M2.7 flare on 2015-Mar-12 peaking at 21:51UT, an M1.2 flare on 2015-Mar-13 peaking at 04:01UT and an M1.8 flare on 2015-Mar-13 peaking at 06:07UT. AR 2297 has shown little magnetic evolution with a small amount of flux emergence, which may lead to future eruptions. AR 2299 rotated into view and exhibits a small amount of activity. AR 2298 has shown little activity. There were no discernible Earth directed CMEs over the past 24 hours. There is a large filament located between S15W90 and S50E20, however this has remained, and appears, stable. The solar wind speed has remained roughly constant over the past 24 hours around 425 km/s. The total magnetic field has slightly increased from 5 nT to 7 nT, and the Bz component has remained mainly positive over the past 24 hours. The Bz has ranged between +6 and -9 nT. Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. A transient coronal hole is currently located at S05W50, this may produce enhanced solar wind speeds. AR 2297 and AR 2299 produced several small CMEs over the past 24 hours.

Today's estimated international sunspot number (ISN): 058, based on 19 stations.

Solar indices for 12 Mar 2015

Wolf number Catania///
10cm solar flux127
AK Chambon La Forêt011
AK Wingst007
Estimated Ap008
Estimated international sunspot number048 - Based on 24 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
12113811501202----M1.601/2297
12120912141218----M1.422001/2297
12135014081413S15E06M4.22B5301/2297VI/1III/2V/2IV/1
12214421512156----M2.723001/2297III/3V/3II/1
13034704010416----M1.201/2297
13054906070612----M1.801/2297III/2

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

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