Updated: Prototype support for parallel SGP4 across multiple satellites#439
Merged
brandon-rhodes merged 10 commits intoskyfielders:masterfrom Sep 11, 2022
Merged
Updated: Prototype support for parallel SGP4 across multiple satellites#439brandon-rhodes merged 10 commits intoskyfielders:masterfrom
brandon-rhodes merged 10 commits intoskyfielders:masterfrom
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Based on profiling for a test application, I will add some changes to improve performance. These will be around precomputing values for coordinate conversion that can be shared across satellites. |
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Why did I leave this un-merged back in 2020? Was I thinking that I should wait until it becomes something we can merge into the main code of Skyfield, and then merge? In any case, my opinion today is that it's fine to have contributor designs like this sitting in the |
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This is an updated prototype to test package the parallel SGP4 capability for computing "n satellites x m times" into one routine in Skyfield.
The new function
positions_for(satellites, earthLocation, times)takes an array of EarthSatellite objects, aToposearth location and an array ofTimeand yields a position for each satellite provided. Some basic tests verify that the positions arenp.isclose()to calculating positions one satellite at a time.