Prohlížíte si archiv úterý 26. ledna 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Jan 26 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Jan 2016 until 28 Jan 2016
Sluneční erupce

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Sluneční protony

Quiet

10cm fluxAp
26 Jan 2016107003
27 Jan 2016108004
28 Jan 2016109009

Bulletin

Over the past 24 hours solar activity has been low. The largest flares were B class flares. NOAA Active Region (AR) 2489 (Beta Dso) has been most active, producing all the B class flares. All visible ARs appear stable and have exhibited little flux emergence. There is currently a large Northern polar coronal hole which is moving into the Western hemisphere and may increase solar wind speeds over the coming days. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Two small CMEs were observed, the first one emerged to the West at 11:24 UT yesterday (25-Jan-2016) with a speed of 306 Km/s as recorded by CACTUS. The second emerged to the East at around 19:00 UT with a speed around 550 Km/s. Neither are expected to hit the Earth. Solar activity is expected to remain low over the next 24 hours with the possibility of C-class flares. The solar wind speed has decreased over the past 24 hours from 450 km/s to 350 km/s. The total magnetic field strength remained around 5 nT. The Bz component was mainly positive fluctuating between 0 and 2 nT. Geomagnetic conditions ranged between Kp index 0-1 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. A low latitude section of a large polar coronal hole has rotated into the Western hemisphere and the resulting high-speed stream (HSS) may enhance solar wind speeds and increase geo- activity in the coming days.

Today's estimated international sunspot number (ISN): 064, based on 13 stations.

Solar indices for 25 Jan 2016

Wolf number Catania067
10cm solar flux108
AK Chambon La Forêt002
AK Wingst///
Estimated Ap003
Estimated international sunspot number063 - Based on 28 stations

Noticeable events summary

DayBeginMaxKonecLocStrengthOP10cmCatania/NOAARadio burst types
Žádný

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

Všechny časy v UTC

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