Is is possible to replicate elliptical orbits around other planets from JPL Horizons Orbital Elements?
Version: 0.15.1
I'm trying to create NASA spacecraft orbits around other planets using JPL HORIZONS orbital elements data. I'd be happy with a reasonable accuracy over a limited, narrow window of time. Stellarium appears to use a subset of HORIZONS 12 elements, and the terminology is different. Ultimately, I'd like to recreate a single Juno perijove over a period of 30 minutes.
I think this is an aggressive task for Stellarium. Is this even possible?
An example I'm trying to replicate is Neptune's moon, Laomedeia, which Stellarium uses the "ell_orbit" coordinate function. I look up HORIZONS' orbital elements at a certain date/time and attempt to pull the pertinent ones to substitute for Stellarium's equivalent orbital elements. Long story short, I can get within millions of km which, over months, oscillate millions of km. I see HORIZONS predicts different element data sets depending on coordinate system reference plane. The choices are: 1) Ecliptic and mean equinox of reference epoch, 2) Body mean equator (e.g. Neptune) and node of date, and 3) Earth mean equator and equinox of reference epoch. I don't know what Stellarium uses.
The answer might be it can't be done, but any information would be helpful.
Thanks!
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- Alexander Wolf
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