getEpochTimestamp returning NaN

When I use the getEpochTimestamp function it returns a NaN. All other get functions are working as expected.

function convertTLE(tle) { const satelliteData = { name: getSatelliteName(tle), semiMajorAxis: getSemiMajorAxis(getMeanMotion(tle)), eccentricity: getEccentricity(tle), inclination: getInclination(tle), rightAscension: getRightAscension(tle), perigee: getPerigee(tle), meanAnomaly: getMeanAnomaly(tle), epoch: getEpochTimestamp(tle), }; console.log(getEpochTimestamp(tle)); return satelliteData; }

[louisjmorgan]

I’m using Node v16.13.1 with react and webpack, but all the calculations are contained within a single react component so I’m not sure that’s affecting anything. The console output for the TLE looked normal:

ISS (ZARYA) 1 25544U 98067A 22005.58472471 .00003968 00000+0 77828-4 0 9998 2 25544 51.6440 61.8159 0005338 6.5542 157.7978 15.49868185319960

I’ll try running your test in a basic two file node setup shortly and let you know if it exhibits the same behaviour.

Thanks again for your help, Louis

---

From: David Calhoun @.> Sent: 06 January 2022 15:25 To: davidcalhoun/tle.js @.> Cc: louisjmorgan @.>; Author @.> Subject: Re: [davidcalhoun/tle.js] getEpochTimestamp returning NaN (Issue #28)

Weird, I’m not sure what’s happening, I can’t reproduce it. I tried it on both Node.js v14.17.5 and v16.13.1 and it works. Added this test, which passes on my side:

test(“getEpochTimestamp 2”, () => { const tle = ISS (ZARYA) 1 25544U 98067A 22005.58472471 .00003968 00000+0 77828-4 0 9998 2 25544 51.6440 61.8159 0005338 6.5542 157.7978 15.49868185319960; expect(getEpochTimestamp(tle)).toEqual(1641391320214); });

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[davidcalhoun]

Closing this out as I’m unable to reproduce.