@type t() :: %Sidereon.GNSS.QC.RaimResult{
  dof: integer(),
  fault_detected: boolean(),
  normalized_residuals: %{required(String.t()) => float()},
  reduced_chi_square: float() | nil,
  rms_m: float(),
  test_statistic: float(),
  testable: boolean(),
  threshold: float() | nil,
  worst_sat: String.t() | nil
}