Viewing archive of Thursday, 25 February 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Feb 25 1323 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
25 Feb 2016	085	006
26 Feb 2016	085	017
27 Feb 2016	085	017

Bulletin

Solar activity was low over the past period. A C1.4 flare originated from Catania group 26 (newly numbered NOAA 2506) in the eastern hemisphere, peaking at 12:29 UT. Catania group 26 (NOAA 2506) showed signs of further development but its flaring potential remains low. Quiet solar conditions with flaring below C level is expected over the next days. No Earth directed CMEs have been observed in coronagraph data. Solar wind speed continued to decline to values currently under 300 km/s. The total magnetic field was in the 6-8nT range with Bz variable and the phi angle mostly in the negative sector. There are so far no indications of the possible northern polar coronal hole influence on the solar wind. A slight enhancement of the solar wind conditions does however remain possible. Geomagnetic conditions were quiet (both local K Dourbes and NOAA Kp 1-2). Quiet to unsettled geomagnetic conditions can be expected.

Today's estimated international sunspot number (ISN): 026, based on 12 stations.

Solar indices for 24 Feb 2016

Wolf number Catania	035
10cm solar flux	088
AK Chambon La Forêt	011
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	035 - Based on 28 stations

Noticeable events summary

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

All times in UTC

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