Vaata teisipäev, 30 juuni 2020 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2020 Jun 30 1238 UTC

SIDC Forecast

Valid from 1230 UTC, 30 Jun 2020 until 02 Jul 2020
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
30 Jun 2020069006
01 Jul 2020070005
02 Jul 2020070005

Bulletin

Solar flaring activity remains low, with only few A class flares reported today. We expect such a low level of the flaring activity to persist in coming hours. During last 24 hours there were no Earth directed CMEs and the solar protons remained at the background level.

The solar wind speed is presently about 340 km/s, and the interplanetary magnetic field magnitude is 3 nT. The in situ observations show the shock wave arrival, this morning at 01:24 UT. The interplanetary magnetic field magnitude showed simultaneous increase with the solar wind speed, density and the temperature. The solar origin of the observed shock is still unclear. The shock observed in situ could have been driven by the weak CME observed on June 24 (weak eruption at about 12:00 UT followed by the coronal dimming was associated with the slow CME observed above the East solar limb) or June 26 (CME of unclear origin observed first in the SOHO LASCO C2 field of view at about 02:29 UT on June 26). Presently the Bz component of the interplanetary magnetic field is positive and no geomagnetic disturbance is reported (K=2 and Kp=2, as reported by Dourbes and NOAA, respectively). The geomagnetic conditions are presently quiet and we expect them to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 29 Jun 2020

Wolf number Catania000
10cm solar flux069
AK Chambon La Forêt///
AK Wingst003
Estimated Ap002
Estimated international sunspot number000 - Based on 34 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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