Webb-tracker-api - James Webb Space Telescope (JWST) tracking REST API

Aslan Vatsaev

Last update: Nov 22, 2022

Overview

James Webb Telescope tracking REST API

Public REST API to track JWST's current status

API data source: https://www.jwst.nasa.gov/content/webbLaunch/whereIsWebb.html

API

Public endpont: https://api.jwst-hub.com

Ressources:

GET: /track
- returns jwst tracking data

Response example: https://api.jwst-hub.com/track

{
    "distanceEarthKm": 421956.0, // distance traveled from earth
    "launchElapsedTime": "02:12:51:53", // time elapsed since launch
    "distanceL2Km": 1024375.6, // remaining distance to L2
    "percentageCompleted": 29.1741, // distance completed in %
    "speedKmS": 1.1578, // cruising speed in km/s
    "deploymentImgURL": "", // URL to deployment visual
    "currentDeploymentStep": "MCC1b - Mid Course Correction Burn 1b", // Current deployment step with description
    "tempC": {
        // dictionary of current temperatures in celcius
        "tempWarmSide1C": 56.67, // sunshield UPS average temperature
        "tempWarmSide2C": 15.56, // spacecraft equipment panel temperature
        "tempCoolSide1C": -88.33, // primary mirror temperature
        "tempCoolSide2C": -182.78 // instrument radiator temperature
    }
}

GET /
- returns API status and metatada

Response example: https://api.jwst-hub.com/

{
  "status": "ok",
  "version": "1.0.0",
  "serverID": "d0453deb-9c78-4e3c-be37-cf7c0633d21d" // node ID that handled the request
}

Build

docker build -t webb-tracker-api .

Run

docker run -p 8001:8001 --name=webb-tracker-api webb-tracker-api

Usage

Endpoint: GET http://localhost:8001/track

Comments

Enable server side cors

I get cors error when I use Fetch.

"Access to fetch at 'https://api.jwst-hub.com/' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled."

Also I have included {mode: no-cors} but it doesn't work
bug

opened by manoprasanth-m 2
feat: add current temperatures

The NASA site added semi-live temperature readings of the telescope. Appended API to display current temperatures.

I'm inexperienced with fullstack dev, so I'm unsure if this method is the most optimal. I've tested it on my machine, and deployed in a docker container, and both work smoothly.
enhancement

opened by Copperbotte 2
API returns "Internal Server Error (500)"
At some point between 8am and Noon CST yesterday (January 27, 2022), the API started to return the following response:

> curl -sS https://api.jwst-hub.com/track | jq . { "statusCode": 500, "error": "Internal Server Error", "message": "Protocol error (Runtime.callFunctionOn): Session closed. Most likely the page has been closed." }

Is the API getting retired, now that JWST reached its Halo orbit around L2?

I was still interested in continued tracking of the temperature changes that are being shared on the "WhereIsWebb" NASA website.

Thanks!
opened by michaelguse 2

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Webb-tracker-api - James Webb Space Telescope (JWST) tracking REST API

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Overview

James Webb Telescope tracking REST API

API

Build

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Comments

Enable server side cors

feat: add current temperatures

API returns "Internal Server Error (500)"

Owner

Aslan Vatsaev

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