prop/priv/repo/migrations/20260415195208_create_space_weather_observations.exs
Graham McIntire 923c8a468d
SpaceWeather: SWPC JSON ingestion (Kp, F10.7, GOES X-ray)
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.
2026-04-15 14:55:24 -05:00

42 lines
1.3 KiB
Elixir

defmodule Microwaveprop.Repo.Migrations.CreateSpaceWeatherObservations do
use Ecto.Migration
def change do
create table(:geomagnetic_observations, primary_key: false) do
add :id, :binary_id, primary_key: true
add :valid_time, :utc_datetime, null: false
add :kp_index, :integer
add :estimated_kp, :float
timestamps(type: :utc_datetime)
end
create unique_index(:geomagnetic_observations, [:valid_time])
create table(:solar_flux_observations, primary_key: false) do
add :id, :binary_id, primary_key: true
add :valid_time, :utc_datetime, null: false
add :frequency_mhz, :integer
add :flux_sfu, :float
add :reporting_schedule, :string
add :ninety_day_mean, :float
timestamps(type: :utc_datetime)
end
create unique_index(:solar_flux_observations, [:valid_time])
create table(:solar_xray_observations, primary_key: false) do
add :id, :binary_id, primary_key: true
add :valid_time, :utc_datetime, null: false
add :satellite, :integer
add :flux_wm2, :float
add :energy_band, :string
add :electron_contaminated, :boolean, default: false, null: false
timestamps(type: :utc_datetime)
end
create unique_index(:solar_xray_observations, [:valid_time, :energy_band])
end
end