Vaata teisipäev, 7 jaanuar 2020 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2020 Jan 07 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 07 Jan 2020 until 09 Jan 2020
Päikesepursked ehk loited

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Päikese prootonid

Quiet

10cm fluxAp
07 Jan 2020071005
08 Jan 2020071020
09 Jan 2020071015

Bulletin

The solar activity has been at very low levels over the past 24 hours. The sunspot group (NOAA 2755) continued to decay and did not produce any flaring activity. The X-ray flux is below B-level and solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind environment near Earth is under the influence of coronal hole wind streams. The solar wind speed slowly decreased from about 520 km/s to 390 Km/s, the total magnetic field is below 5 nT, and the southern component of the magnetic filed fluctuated between -3 nT and 3 nT being negative for long periods (as recorded by the ACE spacecraft). The solar wind speed is expected to continue to decrease slowly until January 8 in the first part of the day. Then we anticipate additional enhancements of the solar wind due to the high-speed streams from the equatorial coronal holes that reached the central meridian on Jan 5.

Quiet to unsettle geomagnetic conditions were observed with Kp-index (NOAA) and K-Dourbes ranging from 2 and 3 in response to the solar wind enhancement and longer period of the southern component of the magnetic field. Quiet to unsettle conditions is expected for the next 24 hours.

Today's estimated international sunspot number (ISN): 000, based on 10 stations.

Solar indices for 06 Jan 2020

Wolf number Catania///
10cm solar flux071
AK Chambon La Forêt010
AK Wingst009
Estimated Ap008
Estimated international sunspot number008 - Based on 26 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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