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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2022 Mar 07 1248 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
07 Mar 2022	113	008
08 Mar 2022	110	007
09 Mar 2022	112	004

Bulletin

Solar activity over the past 24 hours was at very low to low levels with a single C-class flare. There are six numbered active regions on the visible disc, the most prominent being NOAA 2957 (beta), which currently holds the largest number of sunspots and has produced a C1.5-flare with peak time at 12:55 UTC on March 06th. The largest active region on disc, NOAA 2960 (beta), has remained stable and inactive. The X-ray flare activity is expected to be at very to low levels for the next 24 hours with 55% chance for C-class flaring.

No Earth-directed coronal mass ejections (CMEs) were observed in the available coronagraph imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2MeV electron flux has exceeded the 1000 pfu threshold and is expected to remain mostly above the threshold for the next 24 hours. The 24h electron fluence has reached moderate levels and is expected to remain at moderate levels in the next 24 hours.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) have registered the continuous influence of a high-speed stream from a weak negative polarity coronal hole. The solar wind velocity varied in the range of 460 to 540 km/s. The interplanetary magnetic field was weak with a maximum value of 5.8 nT and a minimum Bz of -4.3 nT. The B field was predominantly in the negative sector (directed towards the Sun). The solar wind speed is expected to remain enhanced over the next 24 hours as the influence of the high-speed stream due to the negative polarity coronal hole slowly starts to wane.

The geomagnetic conditions over the past 24 hours were quiet to unsettled. Mostly quiet to unsettled geomagnetic conditions are expected for the next 24 hours with a minor possibility for an isolated active period.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 083, na základě 16 stanic.

Solární indexy za 06 Mar 2022

Wolfovo číslo Catania	///
10cm sluneční tok	116
AK Chambon La Forêt	022
AK Wingst	020
Odhadovaný Ap	020
Odhadovaný mezinárodní počet slunečních skvrn	074 - Na základě 28 stanic

Souhrn významných událostí

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