Просмотр архива за воскресенье, 1 марта 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2015 Mar 01 1229 UTC

SIDC Forecast

Солнечные вспышки

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Солнечные протоны

Quiet

	10cm flux	Ap
01 Mar 2015	123	027
02 Mar 2015	125	017
03 Mar 2015	127	012

Bulletin

Solar activity was dominated by C-class flares from NOAA AR 2290 and 2994. The strongest was a C3.7 flare from NOAA AR 2290 peaking at 05:13 UT. More C-class flares are expected with chances of M-class flaring. Two full halo CMEs occurred on February 28. Both were backsided events. One starting at 04:36 UT (LASCO-C2) and the other at 21:36 UT. Additionally a CME directed to the NW was seen erupting at 15:12 UT, this is a frontside event coming from north of NOAA AR 2292. This CME was slow, it may arrive to the Earth on March 4 and cause at most minor storm conditions. Geomagnetic activity was dominated by a fast speed stream that caused active conditions with isolated minor storm periods starting at midnight on March 1 and still ongoing. The solar wind speed is around 500 km/s with magnetic fields intensities of 10 nT. More active conditions can be expected for today.

Today's estimated international sunspot number (ISN): 054, based on 14 stations.

Solar indices for 28 Feb 2015

Wolf number Catania	///
10cm solar flux	123
AK Chambon La Forêt	035
AK Wingst	012
Estimated Ap	013
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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