diff --git a/build/registerVue.js b/build/registerVue.js
index eb8dc4736..6db7d017c 100644
--- a/build/registerVue.js
+++ b/build/registerVue.js
@@ -1,5 +1,8 @@
-import { register } from 'node:module';
+import { registerHooks } from 'node:module';
+import { load } from './vueLoader.js';
 
 // Lets Node import single-file components: `node --import=<this file>`.
-// Hosts reach it as `<core package>/build/register-vue`.
-register('./vueLoader.js', import.meta.url);
+// Hosts reach it as `<core package>/build/register-vue`. The hooks run on the
+// loading thread: off-thread hooks (module.register) would add a round trip
+// to every module a test imports, not only the components.
+registerHooks({ load });
diff --git a/build/vueLoader.js b/build/vueLoader.js
index a549fca47..13026dc04 100644
--- a/build/vueLoader.js
+++ b/build/vueLoader.js
@@ -1,14 +1,32 @@
-import { readFile } from 'node:fs/promises';
+import { createHash, randomBytes } from 'node:crypto';
+import {
+  lstatSync,
+  mkdirSync,
+  readFileSync,
+  renameSync,
+  rmSync,
+  writeFileSync,
+} from 'node:fs';
+import { createRequire } from 'node:module';
+import { tmpdir } from 'node:os';
+import path from 'node:path';
 import { fileURLToPath } from 'node:url';
-import { compileScript, compileTemplate, parse } from 'vue/compiler-sfc';
 import { VUE_TEMPLATE_OPTIONS } from './vueOptions.js';
 
+const require = createRequire(import.meta.url);
+
+// The compiler loads on the first component that is not cached, so a test
+// process that imports no views, or only cached ones, never pays for it.
+let compiler = null;
+const sfcCompiler = () => (compiler ??= require('vue/compiler-sfc'));
+
 /**
  * Compile a single-file component to an ES module for Node, so unit tests (the
  * application's and a host's) can import components without a bundler.
  * Styles are dropped: tests read the global stylesheet separately.
  */
 export function compileVueModule(source, filename) {
+  const { compileScript, compileTemplate, parse } = sfcCompiler();
   // The template is parsed with the SFC; parse it as the browser build does.
   const { descriptor, errors } = parse(source, {
     filename,
@@ -40,14 +58,113 @@ export function compileVueModule(source, filename) {
   return `${script}\n${template}\nif (typeof render === 'function') __sfc__.render = render;\nexport default __sfc__;\n`;
 }
 
-/** Node module hook: load `.vue` files as compiled modules. */
-export async function load(url, context, nextLoad) {
+// The loader's own code is part of every key, so a change to how components
+// compile never reuses output from before it.
+let loaderFingerprint = null;
+const fingerprint = () =>
+  (loaderFingerprint ??= createHash('sha256')
+    .update(readFileSync(fileURLToPath(import.meta.url)))
+    .update(readFileSync(new URL('./vueOptions.js', import.meta.url)))
+    .update(require('vue/package.json').version)
+    .digest('hex'));
+
+/**
+ * Where compiled components are kept between test processes, never a
+ * package's own tree (a host's checks refuse files inside Core): the system
+ * temp directory, or on Windows the per-user local app data directory, since
+ * a temp directory there may be shared and its ownership is not checked.
+ * GEV_VUE_CACHE=0 compiles every time.
+ */
+export function vueCacheDirectory(
+  env = process.env,
+  platform = process.platform,
+) {
+  if (env.GEV_VUE_CACHE === '0') return null;
+  if (platform === 'win32') {
+    return env.LOCALAPPDATA ? path.join(env.LOCALAPPDATA, 'gev-vue-sfc') : null;
+  }
+  return path.join(tmpdir(), `gev-vue-sfc-${process.getuid()}`);
+}
+
+/** The cache entry for one component: its path, its text and the loader. */
+export function vueCacheKey(source, filename) {
+  return createHash('sha256')
+    .update(JSON.stringify([fingerprint(), filename]))
+    .update('\0')
+    .update(source)
+    .digest('hex');
+}
+
+/**
+ * Compile a component, reusing a previous process's result for the same text.
+ * A cache that cannot be read or written only costs the compile.
+ */
+export function cachedVueModule(
+  source,
+  filename,
+  directory = vueCacheDirectory(),
+) {
+  if (!directory || !ownCacheDirectory(directory)) {
+    return compileVueModule(source, filename);
+  }
+  const entry = path.join(directory, `${vueCacheKey(source, filename)}.mjs`);
+  try {
+    return readFileSync(entry, 'utf8');
+  } catch {
+    // Not compiled yet.
+  }
+  const compiled = compileVueModule(source, filename);
+  // Concurrent test processes and threads may compile the same component;
+  // each writes its own new file and the rename makes the entry appear whole.
+  const partial = `${entry}.${randomBytes(6).toString('hex')}.tmp`;
+  try {
+    writeFileSync(partial, compiled, { flag: 'wx', mode: 0o600 });
+    renameSync(partial, entry);
+  } catch {
+    // An unwritable directory, or a rename another process holds open,
+    // leaves the cache without this entry.
+    try {
+      rmSync(partial, { force: true });
+    } catch {
+      // A partial file that cannot be removed is only clutter.
+    }
+  }
+  return compiled;
+}
+
+/**
+ * Cached modules run as code, so the directory must be this user's own: a
+ * real directory (not a link), owned by the current user and writable by no
+ * one else. In a shared temp directory another user could otherwise create it
+ * first and plant modules. On Windows it sits in the user's own profile.
+ */
+const checkedDirectories = new Map();
+export function ownCacheDirectory(directory) {
+  if (!checkedDirectories.has(directory)) {
+    checkedDirectories.set(directory, isOwnDirectory(directory));
+  }
+  return checkedDirectories.get(directory);
+}
+
+function isOwnDirectory(directory) {
+  try {
+    mkdirSync(directory, { recursive: true, mode: 0o700 });
+    const stats = lstatSync(directory);
+    if (!stats.isDirectory()) return false;
+    if (process.platform === 'win32') return true;
+    return stats.uid === process.getuid() && (stats.mode & 0o022) === 0;
+  } catch {
+    return false;
+  }
+}
+
+/** Synchronous module hook (module.registerHooks): `.vue` loads compiled. */
+export function load(url, context, nextLoad) {
   if (!url.endsWith('.vue')) return nextLoad(url, context);
   const filename = fileURLToPath(url);
-  const source = await readFile(filename, 'utf8');
   return {
     format: 'module',
-    source: compileVueModule(source, filename),
+    source: cachedVueModule(readFileSync(filename, 'utf8'), filename),
     shortCircuit: true,
   };
 }
diff --git a/changelog.d/1432-vessel-course-north.md b/changelog.d/1432-vessel-course-north.md
new file mode 100644
index 000000000..45d9e5845
--- /dev/null
+++ b/changelog.d/1432-vessel-course-north.md
@@ -0,0 +1,3 @@
+- Show a vessel course of 359.5° or more as 0°. Vessel cards and the AIS HUD
+  rounded the course without wrapping, so a ship with no reported heading on
+  a 359.7° course read "360°" and "HDG: 360DEG" (Aditya, @Rohilalala, #1432).
diff --git a/changelog.d/1441-cctv-heading-north.md b/changelog.d/1441-cctv-heading-north.md
new file mode 100644
index 000000000..d65e5c2d8
--- /dev/null
+++ b/changelog.d/1441-cctv-heading-north.md
@@ -0,0 +1,3 @@
+- Show a CCTV camera facing 359.5° or more as HDG 0°. The HUD heading token
+  and the camera panel rounded the bearing without wrapping, so a camera
+  facing 359.6° read "HDG 360°" (Aditya, @Rohilalala, #1441).
diff --git a/changelog.d/1451-alpr-direction-north.md b/changelog.d/1451-alpr-direction-north.md
new file mode 100644
index 000000000..74f04b7ab
--- /dev/null
+++ b/changelog.d/1451-alpr-direction-north.md
@@ -0,0 +1,2 @@
+- Show an ALPR camera's mapped bearing of 359.5° or more as DIRECTION 0°
+  rather than DIRECTION 360° (Aditya, @Rohilalala, #1451).
diff --git a/changelog.d/1500-vue-loader-cache.md b/changelog.d/1500-vue-loader-cache.md
new file mode 100644
index 000000000..da2ff7c13
--- /dev/null
+++ b/changelog.d/1500-vue-loader-cache.md
@@ -0,0 +1,4 @@
+- `build/register-vue` loads components on the test thread and keeps compiled
+  components between test processes in a per-user cache directory, so Node
+  tests that import views run about twice as fast. `GEV_VUE_CACHE=0` compiles
+  every time (samehkhamis, #1500).
diff --git a/docs/CURRENT-STATE.md b/docs/CURRENT-STATE.md
index ecf0d5356..5a98c0702 100644
--- a/docs/CURRENT-STATE.md
+++ b/docs/CURRENT-STATE.md
@@ -557,7 +557,9 @@ those reports arrive as 102.3 knots and 360 degrees. Both are stored as unknown,
 and vessel cards, the HUD and analyst queries show a missing measurement rather
 than a reading. Heading keeps its existing separate check for its own sentinel.
 Genuine readings are unchanged, including a stopped vessel's zero and the
-highest speed and course the fields can encode.
+highest speed and course the fields can encode. Vessel cards and the HUD wrap
+the direction after rounding to whole degrees, so a course of 359.5° or more
+reads `0°` (`0DEG` in the HUD) rather than `360°`.
 
 For an already tracked vessel, AISStream static messages update name, type,
 destination and IMO without changing its position, motion, fix timestamps,
@@ -958,7 +960,9 @@ change. Once the camera is still and tiles have settled, each overlay anchor is
 replaced once by the rendered surface under it (two depth samples per paint,
 accepted only within -30/+40 m of the floor cell), so badges do not float or
 sink on slopes; wedge corners follow their own floor cells instead of staying
-level with the apex. Unknown bearings never acquire a wedge. The row reads
+level with the apex. Unknown bearings never acquire a wedge. The selected
+card's `DIRECTION` wraps after rounding to whole degrees, so a mapped bearing
+of 359.5° or more reads `0°` rather than `360°`. The row reads
 `N nearby · M on screen`; when every loaded camera is outside the view it adds
 "None on screen — nearby cameras are outside the view" instead of looking
 unloaded. `scripts/qa-alpr-journey.mjs` drives an Austin journey with ALPR off,
@@ -4926,7 +4930,9 @@ silently demoting every later lookup for the session.
   wireframe dashed; colours, widths and active/idle emphasis are unchanged. A manual calibration
   (`calSource: 'manual'`) or curated pose (`poseSource: 'curated'`) is never presented as
   estimated, matching the CAL badge. Public camera state carries `headingConfidence` and
-  `headingEstimated` (`src/layers/cctv/headingConfidence.js`, #639).
+  `headingEstimated` (`src/layers/cctv/headingConfidence.js`, #639). The HUD token and the
+  camera panel's meta line wrap the bearing after rounding to whole degrees, so a camera
+  facing 359.5° or more reads `HDG 0°` rather than `HDG 360°`.
 - **CCTV identified hardware:** a camera whose source or seed names a hardware `model` that
   resolves in `src/layers/cctv/modelSpecs.js` (vendored CC0 records from the CCTV Camera
   Database) gets the model's specs appended to the HUD meta line. Only fixed single-lens
diff --git a/scripts/format-scope.json b/scripts/format-scope.json
index 53bb0b66b..613e55dc5 100644
--- a/scripts/format-scope.json
+++ b/scripts/format-scope.json
@@ -68,6 +68,7 @@
   "server/standalone/vite.config.js",
   "vite.config.js",
   "src/tooling/viteBuild.test.mjs",
+  "src/tooling/vueLoader.test.mjs",
   "src/tooling/allowedHosts.test.mjs",
   "server/providers/common/http.js",
   "server/providers/common/query.js",
diff --git a/src/data/aisLiveVessels.test.mjs b/src/data/aisLiveVessels.test.mjs
index 050bb0323..8e12bff94 100644
--- a/src/data/aisLiveVessels.test.mjs
+++ b/src/data/aisLiveVessels.test.mjs
@@ -1321,6 +1321,27 @@ test('buildVesselCard: heading falls back to course; missing parts are omitted',
   assert.deepEqual(bare.details, []);
 });
 
+test('vessel cards read a course that rounds to north as 0°, not 360°', () => {
+  const card = (course) => buildVesselCard(makeRecord({ heading: null, course })).details[0];
+  assert.equal(card(359.4), 'CONTAINER SHIP · 14.5KT · 359°');
+  assert.equal(card(359.7), 'CONTAINER SHIP · 14.5KT · 0°');
+  assert.equal(
+    buildSelectedVesselCard(makeRecord({ heading: null, course: 359.7 })).details[0],
+    'CONTAINER SHIP · 14.5KT · 0°',
+  );
+});
+
+test('the vessel HUD reads a course that rounds to north as HDG 0DEG', () => {
+  const harness = installWireHarness(undefined, { selectedRecord: null });
+  try {
+    Object.assign(harness.record, { heading: null, course: 359.7 });
+    assert.equal(aisLiveVesselsLayer.selectById(harness.record.mmsi), true);
+    assert.match(harness.hud.readout.text, /HDG: 0DEG/);
+  } finally {
+    harness.cleanup();
+  }
+});
+
 test('buildVesselCard: unnamed vessels title as MMSI; long names truncate', () => {
   const unnamed = buildVesselCard(makeRecord({ name: 'VESSEL' }));
   assert.equal(unnamed.title, 'MMSI 353136000');
diff --git a/src/layers/alpr/overlay.test.mjs b/src/layers/alpr/overlay.test.mjs
index 1bb9985af..c9aa8e5f5 100644
--- a/src/layers/alpr/overlay.test.mjs
+++ b/src/layers/alpr/overlay.test.mjs
@@ -2,6 +2,7 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 import * as Cesium from 'cesium';
 import { createAlprOverlay } from './overlay.js';
+import { normalizeAlprNode } from './records.js';
 import {
   directionWedgePositions,
   alprLabelDetails,
@@ -218,6 +219,23 @@ test('adapter labels never claim a custom source is public OSM data', () => {
   );
 });
 
+test('a mapped bearing that rounds up to a whole turn reads 0°, not 360°', () => {
+  const direction = (tag) =>
+    alprLabelDetails(
+      normalizeAlprNode({
+        type: 'node',
+        id: 1,
+        lat: 30,
+        lon: -97,
+        tags: { 'surveillance:type': 'ALPR', 'camera:direction': tag },
+      }),
+      { label: 'Custom directory' },
+    ).find((line) => line.startsWith('DIRECTION'));
+  assert.equal(direction('359.6'), 'DIRECTION 0°');
+  assert.equal(direction('359.4'), 'DIRECTION 359°');
+  assert.equal(direction('0.4'), 'DIRECTION 0°');
+});
+
 test('overlay glyphs and native badges shrink alike with distance', () => {
   assert.equal(markerScale(100), 1.15);
   assert.equal(markerScale(40_000), 0.45);
diff --git a/src/layers/alpr/visuals.js b/src/layers/alpr/visuals.js
index 3a3d3fc5f..2a9202d92 100644
--- a/src/layers/alpr/visuals.js
+++ b/src/layers/alpr/visuals.js
@@ -49,8 +49,9 @@ export function alprLabelDetails(record, source) {
   const details = [
     sourceName === 'OpenStreetMap' ? 'OSM MAPPED' : `Source: ${sourceName}`,
   ];
+  // Wrap after rounding: 359.6° rounds to 360°, which is north.
   if (Number.isFinite(record.directionDeg))
-    details.push(`DIRECTION ${Math.round(record.directionDeg)}°`);
+    details.push(`DIRECTION ${Math.round(record.directionDeg) % 360}°`);
   const equipment = [
     ...new Set(
       [record.manufacturer, record.operator, record.cameraType]
diff --git a/src/layers/cctv/headingConfidence.js b/src/layers/cctv/headingConfidence.js
index 26a877558..fad0867de 100644
--- a/src/layers/cctv/headingConfidence.js
+++ b/src/layers/cctv/headingConfidence.js
@@ -44,7 +44,8 @@ export function isHeadingEstimated(camera) {
  * @returns {string}
  */
 export function headingHudToken(camera) {
-  const hdg = Math.round(Number(camera?.headingDeg) || 0);
+  // 359.5° and above rounds to north; modulo keeps it from printing 360°.
+  const hdg = Math.round(Number(camera?.headingDeg) || 0) % 360;
   return isHeadingEstimated(camera)
     ? t('HDG {value}° (ESTIMATED)', { value: hdg })
     : t('HDG {value}°', { value: hdg });
diff --git a/src/layers/cctv/headingConfidence.test.mjs b/src/layers/cctv/headingConfidence.test.mjs
index 513bf0d1b..3cf673861 100644
--- a/src/layers/cctv/headingConfidence.test.mjs
+++ b/src/layers/cctv/headingConfidence.test.mjs
@@ -44,6 +44,15 @@ test('HUD token tags a synthetic bearing and rounds the degrees', () => {
   );
 });
 
+test('HUD token reads a bearing that rounds to north as 0°, not 360°', () => {
+  assert.equal(headingHudToken({ headingDeg: 359.4 }), 'HDG 359°');
+  assert.equal(headingHudToken({ headingDeg: 359.6 }), 'HDG 0°');
+  assert.equal(
+    headingHudToken({ headingDeg: 359.5, headingConfidence: 'low' }),
+    'HDG 0° (ESTIMATED)',
+  );
+});
+
 test('HUD token stays untagged for surveyed and calibrated bearings', () => {
   assert.equal(
     headingHudToken({ headingDeg: 67.5, headingConfidence: 'high' }),
diff --git a/src/layers/vessels/cards.js b/src/layers/vessels/cards.js
index aa6f06717..2cab53ed1 100644
--- a/src/layers/vessels/cards.js
+++ b/src/layers/vessels/cards.js
@@ -55,7 +55,10 @@ export function createCards({
     if (record.speed !== null && record.speed !== undefined)
       parts.push(formatSpeed(record.speed));
     const direction = record.heading ?? record.course;
-    if (Number.isFinite(direction)) parts.push(`${Math.round(direction)}°`);
+    // A course of 359.5° and above rounds to north; modulo keeps it from
+    // printing 360°. The selected card and the HUD wrap the same way.
+    if (Number.isFinite(direction))
+      parts.push(`${Math.round(direction) % 360}°`);
     return {
       id: vesselOverlayEntryId(record),
       actionable: Boolean(record?.mmsi),
@@ -86,7 +89,7 @@ export function createCards({
       [
         vesselTypeShort(record) || t('VESSEL'),
         formatSpeed(record.speed),
-        Number.isFinite(direction) ? `${Math.round(direction)}°` : '--°',
+        Number.isFinite(direction) ? `${Math.round(direction) % 360}°` : '--°',
       ].join(' · '),
     ];
     const destination = String(record.destination || '').trim();
@@ -176,7 +179,7 @@ export function createCards({
 
   function formatHeading(heading) {
     return t('{heading}DEG', {
-      heading: Number.isFinite(heading) ? Math.round(heading) : '--',
+      heading: Number.isFinite(heading) ? Math.round(heading) % 360 : '--',
     });
   }
 
diff --git a/src/tooling/vueLoader.test.mjs b/src/tooling/vueLoader.test.mjs
new file mode 100644
index 000000000..772299c0b
--- /dev/null
+++ b/src/tooling/vueLoader.test.mjs
@@ -0,0 +1,111 @@
+import assert from 'node:assert/strict';
+import {
+  chmodSync,
+  mkdirSync,
+  mkdtempSync,
+  readdirSync,
+  rmSync,
+  symlinkSync,
+  writeFileSync,
+} from 'node:fs';
+import { tmpdir } from 'node:os';
+import path from 'node:path';
+import test from 'node:test';
+import {
+  cachedVueModule,
+  compileVueModule,
+  ownCacheDirectory,
+  vueCacheDirectory,
+  vueCacheKey,
+} from '../../build/vueLoader.js';
+
+const SOURCE =
+  '<script setup>\nconst label = "Hi";\n</script>\n<template><b>{{ label }}</b></template>\n';
+const FILE = '/virtual/Greeting.vue';
+
+test('a component compiles once and later processes read the cached module', (t) => {
+  const directory = mkdtempSync(path.join(tmpdir(), 'gev-vue-cache-test-'));
+  t.after(() => rmSync(directory, { recursive: true, force: true }));
+  const compiled = cachedVueModule(SOURCE, FILE, directory);
+  assert.equal(compiled, compileVueModule(SOURCE, FILE));
+  const entries = readdirSync(directory);
+  assert.deepEqual(entries, [`${vueCacheKey(SOURCE, FILE)}.mjs`]);
+  // A cached entry is returned as stored, without compiling again.
+  writeFileSync(path.join(directory, entries[0]), 'export default "cached";');
+  assert.equal(
+    cachedVueModule(SOURCE, FILE, directory),
+    'export default "cached";',
+  );
+});
+
+test('an edited component or another path is a new cache entry', () => {
+  const key = vueCacheKey(SOURCE, FILE);
+  assert.notEqual(vueCacheKey(`${SOURCE}\n`, FILE), key);
+  assert.notEqual(vueCacheKey(SOURCE, '/virtual/Other.vue'), key);
+  assert.equal(vueCacheKey(SOURCE, FILE), key);
+});
+
+test('GEV_VUE_CACHE=0 compiles every time; otherwise the cache sits in a per-user directory', () => {
+  assert.equal(vueCacheDirectory({ GEV_VUE_CACHE: '0' }), null);
+  if (process.platform !== 'win32') {
+    const directory = vueCacheDirectory({});
+    assert.equal(path.dirname(directory), tmpdir());
+    assert.match(path.basename(directory), /^gev-vue-sfc-/);
+  }
+  // Windows temp directories may be shared, so the cache lives in the
+  // user's profile, or not at all.
+  assert.equal(
+    vueCacheDirectory(
+      { LOCALAPPDATA: 'C:\\Users\\a\\AppData\\Local' },
+      'win32',
+    ),
+    path.join('C:\\Users\\a\\AppData\\Local', 'gev-vue-sfc'),
+  );
+  assert.equal(vueCacheDirectory({}, 'win32'), null);
+  assert.equal(
+    cachedVueModule(SOURCE, FILE, null),
+    compileVueModule(SOURCE, FILE),
+  );
+});
+
+test('a cache directory that cannot be written still returns the compiled module', (t) => {
+  const directory = mkdtempSync(path.join(tmpdir(), 'gev-vue-cache-test-'));
+  t.after(() => rmSync(directory, { recursive: true, force: true }));
+  // A file where the cache directory should be makes every write fail.
+  const blocked = path.join(directory, 'blocked');
+  writeFileSync(blocked, '');
+  assert.equal(
+    cachedVueModule(SOURCE, FILE, blocked),
+    compileVueModule(SOURCE, FILE),
+  );
+});
+
+test(
+  'a cache directory others can write to, or a link to one, is never read',
+  {
+    skip: process.platform === 'win32',
+  },
+  (t) => {
+    const root = mkdtempSync(path.join(tmpdir(), 'gev-vue-cache-test-'));
+    t.after(() => rmSync(root, { recursive: true, force: true }));
+    const shared = path.join(root, 'shared');
+    mkdirSync(shared);
+    chmodSync(shared, 0o777);
+    // A module planted where the cache would look must not run.
+    writeFileSync(
+      path.join(shared, `${vueCacheKey(SOURCE, FILE)}.mjs`),
+      'export default "planted";',
+    );
+    assert.equal(ownCacheDirectory(shared), false);
+    assert.equal(
+      cachedVueModule(SOURCE, FILE, shared),
+      compileVueModule(SOURCE, FILE),
+    );
+    const own = path.join(root, 'own');
+    mkdirSync(own, { mode: 0o700 });
+    const link = path.join(root, 'link');
+    symlinkSync(own, link);
+    assert.equal(ownCacheDirectory(link), false);
+    assert.equal(ownCacheDirectory(own), true);
+  },
+);
diff --git a/src/ui/cctvPanel.test.mjs b/src/ui/cctvPanel.test.mjs
index 1675d6119..a3dbef786 100644
--- a/src/ui/cctvPanel.test.mjs
+++ b/src/ui/cctvPanel.test.mjs
@@ -490,3 +490,26 @@ test('the scene summary types in, then holds the whole text', async (t) => {
   await nextTick();
   assert.equal(byId('cctv-summary').textContent, text);
 });
+
+test('the panel meta line reads a bearing that rounds to north as HDG 0°', () => {
+  const meta = (headingDeg) => {
+    const camera = {
+      id: 'a',
+      city: 'Austin',
+      headingDeg,
+      fovDeg: 74,
+      rangeM: 700,
+    };
+    return presentCctvPanel(
+      {
+        enabled: true,
+        activeCameraId: camera.id,
+        activeCamera: camera,
+        cameras: [camera],
+      },
+      true,
+    ).meta;
+  };
+  assert.match(meta(359.4), /· HDG 359° ·/);
+  assert.match(meta(359.6), /· HDG 0° ·/);
+});
diff --git a/src/ui/cctvPresentation.js b/src/ui/cctvPresentation.js
index c5daf7163..cd298e108 100644
--- a/src/ui/cctvPresentation.js
+++ b/src/ui/cctvPresentation.js
@@ -107,7 +107,7 @@ function metaText(state, enabled, activeCamera, catalogCount) {
         '{city} · HDG {heading} · FOV {fov} · RANGE {range}m · {projection}{calBadge} · {provider}{status}',
         {
           city: activeCamera.city,
-          heading: `${Math.round(activeCamera.headingDeg)}°`,
+          heading: `${Math.round(activeCamera.headingDeg) % 360}°`,
           fov: `${Math.round(activeCamera.fovDeg)}°`,
           range: Math.round(activeCamera.rangeM),
           projection: projLabel,