fix(satellites): stop matching a mission to a namesake from another year

The mission orbit lookup reads each loaded satellite's launch year from its
international designator, but satellite.js never parses that field, so the
year check never ran and a new payload could take an older namesake's orbit
and position. The loaded catalog now keeps the designator from the TLE line.

src/layers/satellites/catalog.js

@@ -114,6 +114,8 @@ export function createCatalog({ state: layerState, services, parts, source }) {
           const entry = entries[i];
           const satrec = twoline2satrec(entry.line1, entry.line2);
           if (!satrec || satrec.error !== 0) continue;
+          // satellite.js omits the designator the launch-year match reads.
+          satrec.intldesg = entry.line1.slice(9, 17).trim();
           const noradId = noradIdFromSatnum(satrec.satnum);
           if (layerState._catalog.has(noradId)) continue; // core catalog keeps priority
           const pos = parts.orbits.propagatePosition(satrec, now);

src/layers/satellites/ingestion.js

@@ -119,6 +119,8 @@ export function createIngestion({
         for (const entry of allEntries) {
           const satrec = twoline2satrec(entry.line1, entry.line2);
           if (!satrec || satrec.error !== 0) continue;
+          // satellite.js omits the designator the launch-year match reads.
+          satrec.intldesg = entry.line1.slice(9, 17).trim();
 
           const noradId = noradIdFromSatnum(satrec.satnum);
           if (seen.has(noradId)) continue;

src/layers/satellites/ingestion.test.mjs

@@ -2,6 +2,7 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 import { parseTleText } from '../../sources/tle.js';
 import { createIngestion } from './ingestion.js';
+import { createOrbits } from './orbits.js';
 
 // The ISS set (1 January 2024) with its catalog field swapped per satellite.
 const ISS_LINE1 =
@@ -78,3 +79,22 @@ test('every Alpha-5 satellite keeps its own catalog entry through dedupe', async
   assert.deepEqual([...state._points.keys()], [100000, 110001, 339999]);
   assert.equal(state._count, 3);
 });
+
+test('a mission payload does not match a loaded satellite from another launch year', async (t) => {
+  t.mock.method(console, 'log', () => {});
+  t.mock.method(console, 'warn', () => {});
+  // SXM-11, international designator 2026-148A.
+  const { state, update } = ingestionFor(
+    [
+      'SXM-11',
+      '1 69728U 26148A   26208.65166678  .00000015  00000+0  00000+0 0  9990',
+      '2 69728   0.0784 264.9826 0001797 240.4588 273.9506  1.00271527   440',
+    ].join('\n'),
+  );
+  await update();
+  const { getSatelliteOrbitTrack } = createOrbits({ state });
+  const track = (launchTime) =>
+    getSatelliteOrbitTrack('Sirius SXM-11', { launchTime });
+  assert.equal(track('2026-06-29T02:25:00Z')?.noradId, 69728);
+  assert.equal(track('2030-06-29T02:25:00Z'), null);
+});

src/layers/satellites/stale.test.mjs

@@ -235,6 +235,20 @@ test('dense provenance belongs to its admitted records and clears on removal', a
   );
 });
 
+test('dense extras keep their launch year for mission orbit matching', async (t) => {
+  const f = await fixture(t);
+  await f.update();
+  f.state._params.catalog = 'dense';
+  assert.equal((await f.parts.catalog._loadDenseCatalog()).status, 'ready');
+  // Every fixture set carries the 1998-067A designator.
+  const track = (launchTime) =>
+    f.parts.orbits.getSatelliteOrbitTrack('OWNED ORBIT FIXTURE 25551', {
+      launchTime,
+    });
+  assert.equal(track('1998-11-20T06:40:00Z')?.noradId, 25551);
+  assert.equal(track('2026-06-29T02:25:00Z'), null);
+});
+
 test('cancelling dense replacement preserves admitted stale extras until rebuild', async (t) => {
   const f = await fixture(t);
   await f.update();