Vaata kolmapäev, 1 aprill 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 Apr 01 1348 UTC

SIDC Forecast

Valid from 1230 UTC, 01 Apr 2015 until 03 Apr 2015
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
01 Apr 2015125009
02 Apr 2015122010
03 Apr 2015119018

Bulletin

No C-class or even B-class flares were reported during in the past 24 hours. Four sunspot groups reported today have rather simple configurations of the photospheric magnetic field. Unless active regions behind the east limb become flare-productive, a C-class flare is unlikely, although still possible. The Earth is currently inside the trailing part of the ICME driving the shock wave that arrived at the Earth yesterday morning. The interplanetary magnetic field inside the ICME reached 18 nT, but due to its predominantly northward direction the geomagnetic conditions remained on the quiet to unsettled level. The ICME speed is low (up to 450 km/s), so we expect quiet geomagnetic conditions in the coming hours. The solar source of the ICME is not clear. Late on April 2 we expect the arrival of a fast flow from a trans-equatorial coronal hole that reached the solar central meridian late on March 30, possibly resulting in a geomagnetic disturbance up to the minor storm level (K = 5).

Today's estimated international sunspot number (ISN): 028, based on 15 stations.

Solar indices for 31 Mar 2015

Wolf number Catania///
10cm solar flux128
AK Chambon La Forêt018
AK Wingst011
Estimated Ap010
Estimated international sunspot number/// - Based on /// stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

Kõik ajad UTC-s

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