Vaata pühapäev, 17 mai 2015 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2015 May 17 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 17 May 2015 until 19 May 2015
Päikesepursked ehk loited

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

Geomagnetism

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

Päikese prootonid

Quiet

10cm fluxAp
17 May 2015126013
18 May 2015122021
19 May 2015118010

Bulletin

No C-class flares were observed. NOAA 2339 is quietly rounding the west limb. The 5 other sunspot regions are small and magnetically simple. Various filament eruptions were observed, most notably a filament east of NOAA 2348 that erupted around 07:00UT. Based on currently available coronagraphic imagery, none of the related coronal mass ejections (CMEs) had an earth-directed component.

There's still a chance for an isolated C-class flare.

Solar wind speed decreased further from about 430 km/s and is currently ranging between 360 and 400 km/s. Bz varied between -4 and +5 nT. A sector boundary crossing was observed at 04:10-04:20UT, with the direction of the interplanetary magnetic field abruptly turning from toward to away from the Sun. Quiet to unsettled geomagnetic conditions were observed.

The arrival of the 13 May CME and the high speed stream from the recurrent positive polarity coronal hole are expected for later today or 18 May. This may result in active conditions, with a possibility on a minor storming episode.

Today's estimated international sunspot number (ISN): 059, based on 17 stations.

Solar indices for 16 May 2015

Wolf number Catania///
10cm solar flux131
AK Chambon La Forêt009
AK Wingst006
Estimated Ap005
Estimated international sunspot number071 - Based on 18 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

Kõik ajad UTC-s

<< Mine igapäevase ülevaate lehele

Viimane uudis

Toeta SpaceWeatherLive.com-i!

Paljud inimesed külastavad SpaceWeatherLive lehte selleks, et jälgida, mis toimub Päikesel või, kas on oodata virmalisi. Suurema liiklusega on serveri koormus ning maksumus kõrgem. Kui sulle meeldib see, mida me sinu heaks teeme, siis saad sa sellele ka ise natukene kaasa aidata, annetades selle lehe käigus hoidmise ja arendamise heaks. Ette tänades SpeaceWeatherLive meeskond!

Anneta SpaceWeatherLive Pro
Toetage SpaceWeatherLive meie kaupadega
Vaadake meie kaupa

Fakte kosmose ilmast

Viimane X-loide28/03/2025X1.1
Viimane M-loide01/04/2025M2.4
Viimane geomagnetiline torm27/03/2025Kp5 (G1)
Plekivabasid päevi
Viimane päikese plekivaba päev08/06/2022
Kuu keskmine päikeseplekkide arv
veebruar 2025154.6 +17.6
aprill 2025147 -7.6
Viimased 30 päeva128.8 -21.8

See päev ajaloos*

Päikesepursked ehk loited
12001X28.5
22001X2.01
32001X1.59
42014M9.35
52017M8.22
DstG
11960-272G3
21973-173G3
32001-101G1
41976-101G1
51994-96G3
*alates 1994

Sotsiaalvõrgustikud