alt Hacker NewsIs that solving the right problem? The algorithm can give reasonably accurate positions at arbitrary points in future, but you don’t need to run it over and over if you need positions every second. You can generate keyframes and interpolate the positions between, as the short term orbital movements are rather trivial.
Totally agree. Cool little project, but I cannot think of one use case where this is needed.
> But "fine" starts to feel slow when you need dense time resolution. Generating a month of ephemeris data at one-second intervals is 2.6 million propagations per satellite.
Ok, except SGP4 loses its accuracy over WAY shorter time frames than a month (think hours/days)
> Pass prediction over a ground station network might need sub-second precision across weeks.
a) sub-second ephemeris for antenna pointing is crazy overkill, and b) same comment about accuracy as above.