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  1. May 2023
  2. www.aavso.org www.aavso.org
    SID Monitoring Program | aavso
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    1. kael 24 May 2023
      sid astro radio wikipedia:en=Solar_flare wikipedia:fr=Perturbation_ionosphérique_à_début_brusque wikipedia:en=Sudden_ionospheric_disturbance wikipedia:en=Skywave wikipedia:fr=Propagation_ionosphérique
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    aavso.org/sid-monitoring
  3. www.aavso.org www.aavso.org
    Sudden Ionospheric Disturbances (SIDs) | aavso
    1
    1. kael 24 May 2023

      sid astro radio wikipedia:en=Solar_flare wikipedia:fr=Perturbation_ionosphérique_à_début_brusque wikipedia:en=Sudden_ionospheric_disturbance wikipedia:en=Skywave wikipedia:fr=Propagation_ionosphérique
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    aavso.org/solar-sids