feat: ✨ add editTle method to satellite class

src/objects/Satellite.ts

@@ -61,45 +61,53 @@ import { TimeVariables } from '../interfaces/TimeVariables';
  * calculating its position and other properties.
  */
 export class Satellite extends BaseObject {
-  apogee: Kilometers;
-  argOfPerigee: Degrees;
-  bstar: number;
-  eccentricity: number;
-  epochDay: number;
-  epochYear: number;
-  inclination: Degrees;
-  intlDes: string;
-  meanAnomaly: Degrees;
-  meanMoDev1: number;
-  meanMoDev2: number;
-  meanMotion: number;
+  apogee!: Kilometers;
+  argOfPerigee!: Degrees;
+  bstar!: number;
+  eccentricity!: number;
+  epochDay!: number;
+  epochYear!: number;
+  inclination!: Degrees;
+  intlDes!: string;
+  meanAnomaly!: Degrees;
+  meanMoDev1!: number;
+  meanMoDev2!: number;
+  meanMotion!: number;
   options: OptionsParams;
-  perigee: Kilometers;
-  period: Minutes;
-  rightAscension: Degrees;
-  satrec: SatelliteRecord;
+  perigee!: Kilometers;
+  period!: Minutes;
+  rightAscension!: Degrees;
+  satrec!: SatelliteRecord;
   /** The satellite catalog number as listed in the TLE. */
-  sccNum: string;
+  sccNum!: string;
   /** The 5 digit alpha-numeric satellite catalog number. */
-  sccNum5: string;
+  sccNum5!: string;
   /** The 6 digit numeric satellite catalog number. */
-  sccNum6: string;
-  tle1: TleLine1;
-  tle2: TleLine2;
+  sccNum6!: string;
+  tle1!: TleLine1;
+  tle2!: TleLine2;
   /** The semi-major axis of the satellite's orbit. */
-  semiMajorAxis: Kilometers;
+  semiMajorAxis!: Kilometers;
   /** The semi-minor axis of the satellite's orbit. */
-  semiMinorAxis: Kilometers;
+  semiMinorAxis!: Kilometers;
 
   constructor(info: SatelliteParams, options?: OptionsParams) {
     super(info);
 
-    const tleData = Tle.parse(info.tle1, info.tle2);
+    this.parseTleAndUpdateOrbit_(info.tle1, info.tle2, info.sccNum);
 
-    this.tle1 = info.tle1;
-    this.tle2 = info.tle2;
+    this.options = options ?? {
+      notes: '',
+    };
+  }
 
-    this.sccNum = info.sccNum ?? tleData.satNum.toString();
+  private parseTleAndUpdateOrbit_(tle1: TleLine1, tle2: TleLine2, sccNum?: string) {
+    const tleData = Tle.parse(tle1, tle2);
+
+    this.tle1 = tle1;
+    this.tle2 = tle2;
+
+    this.sccNum = sccNum ?? tleData.satNum.toString();
     this.sccNum5 = Tle.convert6DigitToA5(this.sccNum);
     this.sccNum6 = Tle.convertA5to6Digit(this.sccNum5);
     this.intlDes = tleData.intlDes;
@@ -119,13 +127,7 @@ export class Satellite extends BaseObject {
     this.semiMinorAxis = (this.semiMajorAxis * Math.sqrt(1 - this.eccentricity ** 2)) as Kilometers;
     this.apogee = (this.semiMajorAxis * (1 + this.eccentricity) - 6371) as Kilometers;
     this.perigee = (this.semiMajorAxis * (1 - this.eccentricity) - 6371) as Kilometers;
-
-    // NOTE: Calculate apogee and perigee
-
-    this.satrec = Sgp4.createSatrec(info.tle1, info.tle2);
-    this.options = options ?? {
-      notes: '',
-    };
+    this.satrec = Sgp4.createSatrec(tle1, tle2);
   }
 
   /**
@@ -165,6 +167,10 @@ export class Satellite extends BaseObject {
     return true;
   }
 
+  editTle(tle1: TleLine1, tle2: TleLine2, sccNum?: string): void {
+    this.parseTleAndUpdateOrbit_(tle1, tle2, sccNum);
+  }
+
   /**
    * Calculates the azimuth angle of the satellite relative to the given sensor at the specified date. If no date is
    * provided, the current time of the satellite is used.