HorizonsEphemeris.jl

Solar system ephemeris data for free!

Installation

Choose one of the following!

pkg> add HorizonsEphemeris

import Pkg
Pkg.add("HorizonsEphemeris")

Overview

While HorizonsAPI.jl provides a precise interface which matches the JPL Horizons API, HorizonsEphemeris.jl provides a more user-friendly way to request solar system ephemeris data. At this time, only Cartesian state vector ephemeris data is available through the HorizonsEphemeris.jl interface.

For more information, read on to the Examples page, or the package Reference.

NAIF IDs

Internally, HorizonsEphemeris converts provided names to NAIF IDs. All compatible bodies are shown below.

using SPICE, DataFrames

names = (; ID=Int[], Name=String[])

for id in range(-100000, 100000)
    name = bodc2n(id)
    isnothing(name) && continue
    push!(names.ID, id)
    push!(names.Name, name)
end

DataFrame(names)