node-red-contrib-satellites 0.2.0

A Node-RED node to work with 3d satellite orbit data.

npm install node-red-contrib-satellites

A set of Node-RED nodes to help working with Two-Line-Element (TLE) sets. Utilising the satellites.js library to convert the TLE sets into xyz and latlng coordinates.

The list of satellites, and associated TLE data is retrieved from NORAD.

Changelog

v0.2.0

  • New "TLE" node which is the equivalent of the old "Satellite" node, allowing you to input raw TLE data.
  • Modified "Satellite" node which now provides you with a predefined selection of types and satellites.
  • Added new "GPS Constellation" example & updated old "ISS_worldmap.json" example

Examples

In the ./examples folder you can find sample flows that demonstrate some use cases for this set of nodes.

Please note that TLE Data for a given satellite does change, and so the TLE data set used here may be out of date when you come to use it. For an up to date dataset for the ISS, please go here:

./examples/ISS.json

ISS 3d Example

This flow will calculate the current xyz position of the ISS, using the relevant TLE data in the satellite node. The data is then fed into the earth node for visualisation.

./examples/ISS-worldmap.json

ISS World Map Example

note: This example has a dependancy on the node-red-contrib-web-worldmap node.

This flow will calculate the current position of the ISS, using it's TLE data in the satellite node, and convert it into the relevant formats for use with the worldmap node.

The time array node is used to calculate the timestamps for +/- 10 minutes from the current time, as to create the recent and upcoming path of the ISS.

./examples/GPS-constellation.json

GPS World Map Example

note: This example has a dependancy on the node-red-contrib-web-worldmap node.

This flow will shows the location of GPS satellites (in latitude and longitude) on thw worldmap node.

The time array node is used to calculate the timestamps for +/- 20 minutes from the current time, as to create the recent and upcoming path of each satellite. The pin is then shown at the 20th point in that array (halfway given the sample rate of 40 points).

Known Issues

  • The position when showing a satellite in the 3d world is slightly offset in terms of the landmass it is above, depending on the latitude and longitude of the current position, the extent of the offset does vary.
  • The 'Earth' node is quite computationally heavy, we're looking into the exact recommendations for the hardware to effectively run this node, in addition to how we can lighten the load on the machine.
  • Windows: We are aware of some issues when running these nodes on Windows, and they are being investigated.

Node Info

Version: 0.2.0
Updated 2 weeks ago
License: Apache-2.0
Rating:

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Nodes

  • satellite
  • tle
  • timearray
  • earth

Keywords

  • node-red
  • map
  • world
  • satellite

Maintainers

  • jdp1g09