Viewing archive of Thursday, 7 January 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Jan 07 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
07 Jan 2016	100	013
08 Jan 2016	103	007
09 Jan 2016	106	007

Bulletin

New active region NOAA AR 2480 produced a C1.0 flare peaking at 06:17 UT. More C-class flares can be expected. A halo CME occurred yesterday at 14:12 (LASCO-C2). This event is backsided and not expected to arrive to the Earth. A previous slow CME (12:00 UT, 250 km/s) was in the field of view of LASCO-C2 when the second one started, CACTus merged these two events and emitted an alert as a full halo CME. The second CME had an angular width of 100 degrees, originated from a filament eruption close to the eastern limb and was mostly directed to the south-east, but a glancing blow at the Earth cannot be discarded late on January 10. due to the slow speed of this CME not more than active conditions should be expected. The Earth is still under the influence of a fast solar wind stream, with speeds around 570 km/s and interplanetary magnetic field magnitude of 5 nT. Unsettled to active conditions have been recorded, the situation is expected to remain unchanged for the next 24 h.

Today's estimated international sunspot number (ISN): 057, based on 02 stations.

Solar indices for 06 Jan 2016

Wolf number Catania	///
10cm solar flux	100
AK Chambon La Forêt	025
AK Wingst	021
Estimated Ap	020
Estimated international sunspot number	030 - Based on 18 stations

Noticeable events summary

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

All times in UTC

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