Sats

server/src/config.mjs

@@ -10,7 +10,9 @@ export function cfg() {
   return {
     PORT:          process.env.PORT          || 3000,
     ADSB_URL:      process.env.ADSB_URL      || '',
-    DB_HOST:       process.env.DB_HOST    || 'http://localhost:8428',
+    TINYGS_URL:    process.env.TINYGS_URL    || '',
+    TINYGS_AUTH:   process.env.TINYGS_AUTH   || '',
+    DB_HOST:       process.env.DB_HOST       || 'http://localhost:8428',
     EMAIL:         process.env.EMAIL,
     LATITUDE:      parseFloat(process.env.LATITUDE  || '0'),
     LONGITUDE:     parseFloat(process.env.LONGITUDE || '0'),

server/src/sats.mjs

@@ -0,0 +1,69 @@
+import {cfg} from './config.mjs';
+import {isEqual} from '@ztimson/utils';
+
+const HISTORY_LIMIT = 500
+const POLL_MS = 5_000
+const TTL_MS = 15 * 60_000 // drop a satellite's bucket if nothing new for 15 min
+
+function parseWm(raw) {
+	const f = raw.replace(/<[^>]+>/g, '').split(',').map(s => s.trim());
+	const [latitude, longitude] = f[15].split('/').map(s => parseFloat(s));
+	const [az, el] = f[16].split('/').map(s => parseFloat(s));
+	return {
+		timestamp: Date.now(),
+		freqMHz: parseFloat(f[3]),
+		satellite: f[14],
+		latitude, longitude,
+		az, el,
+		packetRssi: parseFloat(f[21]),
+		packetSnr: parseFloat(f[22]),
+		freqError: parseFloat(f[23]),
+		crcOk: !/CRC ERROR/i.test(f[24]),
+	}
+}
+
+const satellites = new Map();
+
+function pruneStale() {
+	const now = Date.now();
+	for (const [name, bucket] of satellites) {
+		if (now - bucket.lastSeen > TTL_MS) satellites.delete(name);
+	}
+}
+
+export async function pollTinyGS() {
+	const { TINYGS_URL, TINYGS_AUTH } = cfg();
+	try {
+		const raw = await fetch(TINYGS_URL + '/wm', {
+			headers: TINYGS_AUTH ? {Authorization: `Basic ${TINYGS_AUTH}`} : {}
+		}).then(r => r.text());
+		const reading = parseWm(raw);
+		if (!reading.satellite || reading.satellite === '-') return;
+
+		let bucket = satellites.get(reading.satellite);
+		if (!bucket) {
+			bucket = { history: [], lastSeen: 0 };
+			satellites.set(reading.satellite, bucket);
+		}
+
+		bucket.lastSeen = reading.timestamp;
+		if (!isEqual(bucket.history.at(-1), reading)) {
+			bucket.history.push(reading);
+			if (bucket.history.length > HISTORY_LIMIT) bucket.history.shift();
+		}
+
+		pruneStale();
+	} catch (err) {
+		console.error('[tinygs] poll failed', err);
+	}
+}
+
+setInterval(pollTinyGS, POLL_MS);
+
+export const getTinyGSData = () => {
+	pruneStale();
+	return Array.from(satellites.entries()).map(([name, bucket]) => ({
+		...bucket.history.at(-1),
+		history: bucket.history.slice(0, -1),
+	}));
+}

server/src/sensors.mjs

@@ -108,11 +108,14 @@ export async function queryDaily(start, end) {
 
 export async function getCoords() {
 	const c       = cfg();
+	if(c.LATITUDE !== 0 && c.LONGITUDE !== 0 && c.ALTITUDE !== 0)
+		return {latitude: c.LATITUDE, longitude: c.LONGITUDE, altitude: c.ALTITUDE};
+
 	const results = await queryInstant(c, `{__name__=~"latitude|longitude|altitude"}`);
 	const fields  = metricToFields(results);
 
-	if (fields.latitude && fields.longitude) {
+	if(fields.latitude && fields.longitude) {
 		return {latitude: fields.latitude, longitude: fields.longitude, altitude: fields.altitude || c.ALTITUDE};
 	}
-	return {latitude: c.LATITUDE, longitude: c.LONGITUDE, altitude: c.ALTITUDE};
+	return {latitude: 0, longitude: 0, altitude: 0};
 }

server/src/server.mjs

@@ -12,6 +12,7 @@ import {getADSBImage, getADSB, getADSBHistory, getADSBRange, initAircraftDb} fro
 import {fetchIcon} from './openweather.mjs';
 import {getForecast, getWeatherCondition, forecastTTL} from './forecast.mjs';
 import {dailyWeather, hourlyWeather} from './openmeteo.mjs';
+import {getTinyGSData} from './sats.mjs';
 
 // ── Uncaught error handlers ───────────────────────────────────────────────────
 
@@ -152,7 +153,7 @@ app.get('/api/icon/:icon', asyncHandler(async (req, res, next) => {
 // 	res.json(filterFields(await getSpaceWeather(), fields));
 // });
 
-// ── ADSB/AIS Proxy ────────────────────────────────────────────────────────────
+// ── ADSB/AIS/SAT Proxy ────────────────────────────────────────────────────────────
 
 app.get('/api/adsb', asyncHandler(async (req, res) => res.json(await getADSB())));
 app.get('/api/adsb-image/:icao', asyncHandler(async (req, res) => {
@@ -170,6 +171,7 @@ app.get('/api/ais-image/:mmsi', asyncHandler(async (req, res) => {
 	res.contentType(blob.type).send(buffer);
 }));
 app.get('/api/range', asyncHandler(async (req, res) => res.json(await getADSBRange())));
+app.get('/api/sats', (_req, res) => res.json(getTinyGSData()));
 
 // ── DOCS ──────────────────────────────────────────────────────────────────────