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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| declare module 'satellite.js' { | ||
| /** | ||
| * Satellite record containing description of orbit. | ||
| */ | ||
| export interface SatRec { | ||
| /** | ||
| * Unique satellite number given in the TLE file. | ||
| */ | ||
| satnum: string; | ||
| /** | ||
| * Full four-digit year of this element set's epoch moment. | ||
| */ | ||
| epochyr: number; | ||
| /** | ||
| * Fractional days into the year of the epoch moment. | ||
| */ | ||
| epochdays: number; | ||
| /** | ||
| * Julian date of the epoch (computed from epochyr and epochdays). | ||
| */ | ||
| jdsatepoch: number; | ||
| /** | ||
| * First time derivative of the mean motion (ignored by SGP4). | ||
| */ | ||
| ndot: number; | ||
| /** | ||
| * Second time derivative of the mean motion (ignored by SGP4). | ||
| */ | ||
| nddot: number; | ||
| /** | ||
| * Ballistic drag coefficient B* in inverse earth radii. | ||
| */ | ||
| bstar: number; | ||
| /** | ||
| * Inclination in radians. | ||
| */ | ||
| inclo: number; | ||
| /** | ||
| * Right ascension of ascending node in radians. | ||
| */ | ||
| nodeo: number; | ||
| /** | ||
| * Eccentricity. | ||
| */ | ||
| ecco: number; | ||
| /** | ||
| * Argument of perigee in radians. | ||
| */ | ||
| argpo: number; | ||
| /** | ||
| * Mean anomaly in radians. | ||
| */ | ||
| mo: number; | ||
| /** | ||
| * Mean motion in radians per minute. | ||
| */ | ||
| no: number; | ||
| } | ||
|
|
||
| /** | ||
| * Initialize a satellite record | ||
| */ | ||
| export function twoline2satrec(tleLine1: string, tleLine2: string): SatRec; | ||
|
|
||
| /** | ||
| * Coordinate frame Earth Centered Inertial (ECI) | ||
| * https://en.wikipedia.org/wiki/Earth-centered_inertial | ||
| */ | ||
| export interface EciVec3<T> { | ||
| x: T; | ||
| y: T; | ||
| z: T; | ||
| } | ||
|
|
||
| /** | ||
| * Coordinate frame Earth Centered Fixed (ECF) | ||
| * https://en.wikipedia.org/wiki/ECEF | ||
| */ | ||
| export interface EcfVec3<T> { | ||
| x: T; | ||
| y: T; | ||
| z: T; | ||
| } | ||
|
|
||
| /** | ||
| * Type alias documents units are kilometer (km) | ||
| */ | ||
| export type Kilometer = number; | ||
|
|
||
| /** | ||
| * Type alias documents units are kilometer per second (km/s) | ||
| */ | ||
| export type KilometerPerSecond = number; | ||
|
|
||
| /** | ||
| * The position_velocity result is a key-value pair of ECI coordinates. | ||
| * These are the base results from which all other coordinates are derived. | ||
| */ | ||
| export interface PositionAndVelocity { | ||
| position: EciVec3<Kilometer>; | ||
| velocity: EciVec3<KilometerPerSecond>; | ||
| } | ||
|
|
||
| /** | ||
| * Propagate satellite using time since epoch (in minutes). | ||
| */ | ||
| export function sgp4(satrec: SatRec, timeSinceTleEpochMinutes: number): PositionAndVelocity; | ||
|
|
||
| /** | ||
| * Propagate satellite using time as JavaScript Date. | ||
| */ | ||
| export function propagate(satrec: SatRec, date: Date): PositionAndVelocity; | ||
|
|
||
| /** | ||
| * Type alias documents units are radians | ||
| */ | ||
| export type Radians = number; | ||
|
|
||
| /** | ||
| * Type alias documents units are degrees | ||
| */ | ||
| export type Degrees = number; | ||
|
|
||
| /** | ||
| * Convert number in degrees to number in radians | ||
| * @param value Number to convert | ||
| */ | ||
| export function degreesToRadians(value: Degrees): Radians; | ||
|
|
||
| /** | ||
| * https://en.wikipedia.org/wiki/Geographic_coordinate_system#Latitude_and_longitude | ||
| */ | ||
| export interface GeodeticLocation { | ||
| longitude: Radians; | ||
| latitude: Radians; | ||
| height: Kilometer; | ||
| } | ||
|
|
||
| /** | ||
| * You will need GMST for some of the coordinate transforms. | ||
| * GMST - Greenwich Mean Sidereal Time | ||
| * http://en.wikipedia.org/wiki/Sidereal_time#Definition | ||
| */ | ||
| export type GMSTime = number; | ||
|
|
||
| /** | ||
| * Convert a date time to GMST | ||
| * @param date Time to convert | ||
| */ | ||
| export function gstime(date: Date): GMSTime; | ||
|
|
||
| /** | ||
| * Convert ECI to ECF. Units are not modified. | ||
| */ | ||
| export function eciToEcf<T>(positionEci: EciVec3<T>, gmst: GMSTime): EcfVec3<T>; | ||
|
|
||
| /** | ||
| * Convert geodetic location to ECF | ||
| */ | ||
| export function geodeticToEcf(observerGd: GeodeticLocation): EcfVec3<Kilometer>; | ||
|
|
||
| /** | ||
| * Convert ECI to geodetic location | ||
| */ | ||
| export function eciToGeodetic(positionEci: EciVec3<Kilometer>, gmst: GMSTime): GeodeticLocation; | ||
|
|
||
| /** | ||
| * https://en.wikipedia.org/wiki/Azimuth | ||
| */ | ||
| export interface LookAngles { | ||
| azimuth: Radians; | ||
| elevation: Radians; | ||
| rangeSat: Kilometer; | ||
| } | ||
|
|
||
| /** | ||
| * Convert ECF to look angles | ||
| */ | ||
| export function ecfToLookAngles(observerGd: GeodeticLocation, positionEcf: EcfVec3<Kilometer>): LookAngles; | ||
|
|
||
| /** | ||
| * Compute doppler factor between observer and satellite with position and velocity. | ||
| */ | ||
| export function dopplerFactor( | ||
| observerCoordsEcf: EcfVec3<Kilometer>, | ||
| positionEcf: EcfVec3<Kilometer>, | ||
| velocityEcf: EcfVec3<KilometerPerSecond> | ||
| ): number; | ||
|
|
||
| /** | ||
| * Convert the longitude in RADIANS to DEGREES for pretty printing (appends "N", "S", "E", "W", etc). | ||
| */ | ||
| export function degreesLong(longitude: Radians): string; | ||
|
|
||
| /** | ||
| * Convert the latitude in RADIANS to DEGREES for pretty printing (appends "N", "S", "E", "W", etc). | ||
| */ | ||
| export function degreesLat(latitude: Radians): string; | ||
| } |
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