ootk-core/dist/body/Earth.d.ts

Orbital Object Toolkit. A modern typed replacement for satellite.js including SGP4 propagation, TLE parsing, Sun and Moon calculations, and more.

/**
 * @author Theodore Kruczek.
 * @license MIT
 * @copyright (c) 2022-2025 Theodore Kruczek Permission is
 * hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the
 * Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
import { EpochUTC, Kilometers, RadiansPerSecond, Vector3D } from '../main.js';
import { NutationAngles } from './NutationAngles.js';
import { PrecessionAngles } from './PrecessionAngles.js';
export declare class Earth {
    private constructor();
    static readonly mu: number;
    static readonly radiusEquator: Kilometers;
    static readonly flattening: number;
    static readonly radiusPolar: Kilometers;
    static readonly radiusMean: Kilometers;
    static readonly eccentricitySquared: number;
    static readonly j2: number;
    static readonly j3: number;
    static readonly j4: number;
    static readonly j5: number;
    static readonly j6: number;
    static readonly rotation: Vector3D<RadiansPerSecond>;
    static smaToMeanMotion(semimajorAxis: Kilometers): RadiansPerSecond;
    /**
     * Converts revolutions per day to semi-major axis.
     * @param rpd - The number of revolutions per day.
     * @returns The semi-major axis value.
     */
    static revsPerDayToSma(rpd: number): number;
    static precession(epoch: EpochUTC): PrecessionAngles;
    static nutation(epoch: EpochUTC): NutationAngles;
    static smaToDrift(semimajorAxis: number): number;
    static smaToDriftDegrees(semimajorAxis: number): number;
    static driftToSemimajorAxis(driftRate: number): number;
    static driftDegreesToSma(driftRate: number): number;
    /**
     * Calculates the diameter of the Earth based on the satellite position.
     * @param satPos The position of the satellite.
     * @returns The diameter of the Earth.
     */
    static diameter(satPos: Vector3D): number;
    private static readonly zetaPoly_;
    private static readonly thetaPoly_;
    private static readonly zedPoly_;
    private static readonly moonAnomPoly_;
    private static readonly sunAnomPoly_;
    private static readonly moonLatPoly_;
    private static readonly sunElongPoly_;
    private static readonly moonRaanPoly_;
    private static readonly meanEpsilonPoly_;
}