Viewing archive of Tuesday, 16 August 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Aug 16 1238 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
16 Aug 2016	088	004
17 Aug 2016	087	007
18 Aug 2016	085	001

Bulletin

Solar activity is very low. Only two B flares were observed over the past 24 hours. Five active regions are presently observed on the visible side of the solar disc. Their photospheric magnetic field configuration is simple (beta and alpha configuration). One narrow fast CME coming from the East limb was detected by CACTUS at 17:48 yesterday (15-Aug-2016) originated by an eruptive prominence from the NE limb as observed by ADO/AIA imagery. No geoeffective effects are expected. The high speed stream originated from a low latitude coronal hole has not interacted with Earth geomagnetic field. Solar proton flux intensity is expected to lie within the background levels. Solar activity is expected to be low with small probability for C-class flares.

Solar wind speed continued to decline till 310 km/s as observed around 12:00 UT today (16-08-2016). The magnetic field intensity (Bt) remained below 5 nT. The Bz component was mostly positive or neutral. The local K index at Dourbes was ranged between 1 and 3 (planetary Kp index was ranged between 1 and 2) during last 24 hours. The solar wind parameters are expected to be low and geomagnetic field to remain quiet and undisturbed.

Today's estimated international sunspot number (ISN): 083, based on 23 stations.

Solar indices for 15 Aug 2016

Wolf number Catania	///
10cm solar flux	088
AK Chambon La Forêt	005
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	063 - Based on 31 stations

Noticeable events summary

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

All times in UTC

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