Graham McIntire
923c8a468d
Adds the second ionospheric data source layer. Polls NOAA SWPC's free public JSON services every 5 minutes for three products: * Planetary K-index (1-min cadence) → geomagnetic_observations * 10.7 cm solar flux (hourly) → solar_flux_observations * GOES X-ray flux (1-min, 0.1-0.8nm long-wave band only) → solar_xray_observations All three products feed HF / Es scoring inputs that the propagation engine will start using in a follow-up commit: * Kp drives HF absorption and Es damping (memory notes Kp is inversely correlated with tropo/Es stability). * F10.7 is the SSN proxy for ITU-R P.533 HF MUF prediction. * GOES X-ray long-wave flux is the short-wave fade (SWF) / D-layer absorption proxy — a C-class flare starts attenuating HF within seconds of the X-ray peak. New context `Microwaveprop.SpaceWeather` exposes `upsert_*/1` and `latest_*/0` per product; `SpaceWeatherFetchWorker` pulls all three independently so one endpoint's outage doesn't block the others. Fixtures captured from live SWPC endpoints on 2026-04-15 for the parser tests. Not yet wired into scoring — that's a separate commit.
30 lines
763 B
Elixir
30 lines
763 B
Elixir
defmodule Microwaveprop.SpaceWeather.GeomagneticObservation do
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@moduledoc false
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use Ecto.Schema
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import Ecto.Changeset
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@primary_key {:id, :binary_id, autogenerate: true}
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@foreign_key_type :binary_id
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schema "geomagnetic_observations" do
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field :valid_time, :utc_datetime
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field :kp_index, :integer
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field :estimated_kp, :float
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timestamps(type: :utc_datetime)
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end
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@type t :: %__MODULE__{}
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@required_fields ~w(valid_time)a
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@optional_fields ~w(kp_index estimated_kp)a
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@spec changeset(t() | Ecto.Changeset.t(), map()) :: Ecto.Changeset.t()
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def changeset(obs, attrs) do
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obs
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|> cast(attrs, @required_fields ++ @optional_fields)
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|> validate_required(@required_fields)
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|> unique_constraint(:valid_time)
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end
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end
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