Latest Helios Report

  • Solar Watch — June 21, 2026 | 06:00 UTC

    Solar Flare Activity — Last 12 Hours
    Peak: M-class @ 02:46 UTC (1h 14min ago)
      M @ 02:40 UTC

    ☀ HELIOS SOLAR WATCH · 2026-06-21 04:00 UTC
    Solar activity remains stable; minor flaring observed from eastern limb
    SOLAR: UNSETTLED
    GEO: QUIET

    Active Regions
    5
    X-Ray
    A/B (quiet)

    Geomagnetic conditions are currently quiet with no significant storming expected. While the solar disk remains active with multiple sunspot regions, flaring is restricted to minor M-class events that pose no current threat to Earth’s magnetosphere.

    HMI Continuum Intensity

    HMI Continuum · Visible Light

    SUVI 304 — Extreme UV

    SUVI 304Å · Extreme Ultraviolet

    R0
    Radio Blackouts
    24h max: R0

    S0
    Solar Radiation
    24h max: S0

    G0
    Geomagnetic Storm
    24h max: G0

    Planetary Kp-Index
    1.3
    0–9 scale · ≥5 = geomagnetic storm

    F10.7 Solar Flux
    117.0
    sfu · >150 = high activity

    The planetary K-index is stable at 1.3, reflecting a quiet geomagnetic environment. Solar activity is punctuated by two moderate M-class flares from active regions AR4473 and AR4472, though the solar X-ray background remains largely within nominal ranges. The F10.7 flux is measured at 117.0 sfu, indicative of moderate but sustained solar output.

    Key Metric

    The current F10.7 flux of 117.0 sfu indicates a healthy, moderate level of solar cycle activity without the disruptive energy of an active storm phase.

    Geomagnetic conditions are expected to remain at or below Kp 3 through the next 24 hours as the solar wind environment stays calm. We anticipate ongoing minor flare activity, primarily C-class, with a residual 25% probability for additional M-class flares.

    🌌 Aurora Outlook

    Aurora visibility remains confined to high-latitude regions. No significant activity for mid-latitude observers (40-60°N) is forecast for the next 24 hours.

    Region Location Class Flares C/M/X
    AR4473 S08E69 Eko/B 2/1/0
    AR4465 N08W90 Cso/B 0/0/0
    AR4470 N08E14 Dao/B 1/0/0
    AR4471 N19W17 Axx/A 0/0/0
    AR4472 S14E54 Dao/B 0/1/0
    2026-06-20 04:07:09.847Space Weather Message Code: ALTTP2
    2026-06-20 04:06:10.800Space Weather Message Code: ALTTP2
    2026-06-20 04:03:56.153Space Weather Message Code: ALTTP2
    2026-06-20 04:03:56.120Space Weather Message Code: ALTTP2
    2026-06-20 04:03:56.087Space Weather Message Code: ALTTP2

    Monitor the evolution of active regions AR4473 and AR4472 as they transit toward the center of the solar disk, as their magnetic complexity could shift toward increased flaring frequency.