Välja antud: 2017 Apr 09 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
10 cm vool | Ap | |
---|---|---|
09 Apr 2017 | 074 | 020 |
10 Apr 2017 | 073 | 013 |
11 Apr 2017 | 073 | 014 |
Solar activity was at very low levels during the period. Low-level B-class flaring was observed from NOAA 2645 (B4.9) from behind the west limb, and from a new, but small sunspot region at the east limb (B3.6). No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.
Quiet flaring conditions are expected, with a chance on an isolated C-class flare.
Earth was under the influence of coronal hole wind streams. Solar wind speed reached a maximum near 630 km/s around 15:45UT, before starting a gradual decline to end the period near values of 460 km/s. Bz fluctuated between -6 and +6 nT, being mostly negative after 20UT. The interplanetary magnetic field was initially directed towards the Sun, but changed to a mostly away direction after 22:30UT.
The geomagnetic field was at quiet to active levels, with a minor storming episode (Kp=5) during the 03-06UT interval. Local geomagnetic data were missing for the period, but Potsdam reported mostly active conditions. The geomagnetic field is expected to be at quiet to active levels, with a chance on another minor storming episode.
Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 000, põhineb 19 jaamadel.
Catania Wolfi number | /// |
10cm päikesevoog | 073 |
AK Chambon La Forêt | 028 |
AK Wingst | 020 |
Hinnanguline Ap | 019 |
Hinnanguline rahvusvaheline päikeselaikude arv | 000 - Põhineb 33 jaamal |
Päev | Algus | Maks | Lõpp | Lokatsioon | Tugevus | OP | 10cm | Catania/NOAA | Raadiosignaalipursete tüübid | |
---|---|---|---|---|---|---|---|---|---|---|
Puuduvad |
Andmed on esitanud Päikeseinfektide Andmeanalüüsi Keskus (Solar Influences Data Analysis Center)© - SIDC - Töötleb SpaceWeatherLive
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