Interface NavigationData

interface NavigationData {
    time:
        | {
            utc: Date;
            local: Date
            | null;
            source: "GGA" | "GLL" | "RMC" | "ZDA" | null;
        }
        | null;
    position: | {
        latitude: number;
        longitude: number;
        source: "GGA"
        | "GLL"
        | "RMC"
        | null;
        fixType?:
            | "none"
            | "delta"
            | "manual"
            | "fix"
            | "pps"
            | "rtk"
            | "frtk"
            | "estimated"
            | "simulation";
        status?: "invalid"
        | "valid"
        | "warning";
        altitudeMeters?: number;
        satellitesInView?: number;
        horizontalDilution?: number;
    }
    | null;
    speed: { knots: number; source: "RMC" | "VTG" | null }
    | null;
    heading:
        | {
            degreesTrue: number;
            source: "HDG"
            | "HDT"
            | "COG"
            | null;
            isDerived: boolean;
        }
        | null;
    depth: | { meters: number; source: "DBT"
    | "DBK"
    | "DBS"
    | "DPT"
    | null }
    | null;
}