ECI to CZML in MEAN stack?

CesiumJS
1

After a few hours of searching the web, I was wondering if there was an npm or github repo available that does a JSON to JSON from ECI to CZML?

My situation: I have a simple web server (Node/Express), with a bunch of ECI data stored in a Mongo database. I would like to be able to query that data, and display it in Cesium in my front-end UI. My thought was that I can construct the CZML JSON data based on the query, in Node/Express and send the CZML data back in the response to my UI.

Before I go and try to construct something, I thought I would ask the Cesium team first.

Thanks!

2

Sorry, I don’t know of any tools to do this. If you decide to create your own converter let us know so we can share it out!

Best,

Hannah

3

FYI, CZML (and Cesium in general) supports ECI positions natively.

In CZML, you can specify “referenceFrame”:“INERTIAL” for position properties.

Have a look at simple.czml in the Apps/SampleData directory (just search for referenceFrame)

If you were talking about propagating a TLE instead, that’s a different story and you would need to use another library.