Tällä sivulla voit lukea NOAA SWPC:n julkaisemat kommentit auringon havaitusta aktiivisuudesta edellisen vuorokauden kohdalta sekä muutaman seuraavan vuorokauden kattavan ennusteen. Uusin alkuperäinen julkaisu on luettavissa täällä. Tiedot päivittyvät kaksi kertaa vuorokaudessa.

Julkaistu 28.3.2024 kello 14:30

Auringon aktiivisuus

  • Edellinen vuorokausi

    Solar activity reached high levels as AR 3615 (S13W60, Fkc/beta-gamma-delta) produced a M7.1/1N flare at 28/0629 UTC. Region 3615 continued to be the largest, most complex region on the visible disk while undergoing some minor consolidation in its trailing spots. The remaining active regions were either stable or in decay. The aforementioned M-class flare from AR 3615 did not appear to result in a CME. However, GOES-16 SUVI 304 angstroms imagery suggests that a C8.4 flare at 28/0943 UTC from Region 3615 did result in ejecta. While an Earth-directed component is unlikely, we currently await LASCO coronagraph imagery to conduct a proper analysis.

  • Lähipäivien ennuste

    Solar activity is expected to continue at moderate to high levels (R1-R2/Minor-Moderate), with a chance for an X-class flares (R3/Strong), over 28-29 Mar primarily due to the flare potential of Region 3615. Probabilities decrease to just a chance for M-class flares (R1-R2/Minor-Moderate) on 30 Mar as AR 3615 rotates beyond the western limb.

Aurinkotuuli

  • Edellinen vuorokausi

    Solar wind parameters reflected waning influence of a CME that left the Sun on 23 Mar. Total field was between 1-5 nT, and the Bz component was at or near neutral. Solar wind speeds decreased from near 500 km/s to ~435 km/s by the end of the period. Phi was predominantly in a positive solar sector.

  • Lähipäivien ennuste

    Ambient-like solar wind conditions are expected to return by late 28 Mar. Slighted elevated parameters are possible again by late 29 Mar under weak, negative polarity CH HSS influences, which will continue through 30 Mar.

Geomagneettinen kenttä

  • Edellinen vuorokausi

    The geomagnetic field was quiet.

  • Lähipäivien ennuste

    Mostly quiet conditions are expected to continue for the remainder of 29 Mar. Quiet to unsettled levels are expected for 29-30 Mar due to weak, negative polarity CH HSS effects.

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