Vaata teisipäev, 7 juuli 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Jul 07 1230 UTC

SIDC Forecast

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10cm flux	Ap
07 Jul 2015	139	007
08 Jul 2015	142	005
09 Jul 2015	146	008

Bulletin

NOAA 2381 still has some mixed magnetic polarities. It was responsible for most of the flaring activity, including the strongest flare of the past 24 hours (M1.7 peaking at 20:40UT). No Earth-directed coronal mass ejections (CME) have been observed. The other sunspot regions are small and quiet. A strong CME, first observed by LASCO/C2 at 15:12UT near the southeast limb, was related to a backside event. The probable source region is at or just behind the southeast limb.

C-class flares are expected, with a good chance on an isolated M-class flare.

Earth is gradually exiting the high speed, low density stream of the negative coronal hole (CH). Solar wind speed varied mostly between 450 and 500 km/s, with Bz varying between -4 and +5 nT. A positive equatorial CH is transiting the central meridian.

Quiet to unsettled geomagnetic conditions are expected, with an active episode not excluded.

Today's estimated international sunspot number (ISN): 117, based on 17 stations.

Solar indices for 06 Jul 2015

Wolf number Catania	///
10cm solar flux	133
AK Chambon La Forêt	013
AK Wingst	///
Estimated Ap	014
Estimated international sunspot number	104 - Based on 30 stations

Noticeable events summary

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

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