telemetry is null for some reason

src/plugins/comps/CompsMathWorker.js

@@ -14,10 +14,7 @@ onconnect = function (e) {
           type === 'calculateRequest'
             ? 'calculationRequestResult'
             : 'calculationSubscriptionResult';
-        const result = telemetryForComps.map((point) => {
+        const result = calculate(telemetryForComps, expression);
-          // Using Math.js to evaluate the expression against the data
-          return { ...point, value: evaluate(expression, point) };
-        });
         port.postMessage({ type: replyType, callbackID, result });
       } catch (error) {
         port.postMessage({ type: 'error', callbackID, error: error.message });
@@ -29,3 +26,24 @@ onconnect = function (e) {
     }
   };
 };
+
+function calculate(telemetryForComps, expression) {
+  const dataSet1 = Object.values(telemetryForComps)[0];
+  const dataSet2 = Object.values(telemetryForComps)[1];
+
+  // Organize data by utc for quick access
+  const utcMap1 = new Map(dataSet1.map((item) => [item.utc, item.sin]));
+  const utcMap2 = new Map(dataSet2.map((item) => [item.utc, item.sin]));
+
+  const sumResults = [];
+
+  // Iterate over the first dataset and check for matching utc in the second dataset
+  for (const [utc, sin1] of utcMap1.entries()) {
+    if (utcMap2.has(utc)) {
+      const sin2 = utcMap2.get(utc);
+      const sumSin = evaluate(expression, { a: sin1, b: sin2 });
+      sumResults.push({ utc, sumSin });
+    }
+  }
+  return sumResults;
+}

src/plugins/comps/CompsTelemetryProvider.js

@@ -59,12 +59,12 @@ export default class CompsTelemetryProvider {
       this.#compsManagerPool
     );
     await specificCompsManager.load();
-    const telemetryForComps = specificCompsManager.requestUnderlyingTelemetry();
-    console.debug('🏟️ Telemetry for comps:', telemetryForComps);
-    const expression = specificCompsManager.getExpression();
-    // need to create callbackID with a promise for future execution
     return new Promise((resolve, reject) => {
       const callbackID = this.#getCallbackID();
+      const telemetryForComps = specificCompsManager.requestUnderlyingTelemetry();
+      const expression = specificCompsManager.getExpression();
+      // need to create callbackID with a promise for future execution
+      console.debug('🏟️ Telemetry for comps:', telemetryForComps);
       this.#requestPromises[callbackID] = { resolve, reject };
       this.#sharedWorker.port.postMessage({
         type: 'calculateRequest',