Out of bounds error in SPK segment type 1

[jackyarndley]

I have encountered an error when trying to get the state for the new interstellar asteroid at certain times. Not sure if the error will persist as the BSP is updated, but if required I can try and send the local version I have. The specific times that cause this error seem to (approximately) be between 2026-02-21T10:42:52.3544 TDB and 2026-03-09T21:15:48.4296 TDB. The error stacktrace is attached:

ERROR: BoundsError: attempt to access 19-element Vector{Float64} at index [20]
Stacktrace:
[1] throw_boundserror(A::Vector{Float64}, I::Tuple{Int64})
@ Base .\essentials.jl:15
[2] getindex
@ .\essentials.jl:919 [inlined]
[3] compute_mda_vel_coefficients!
@ C:\Users\jacky.julia\packages\Ephemerides\mE8ZP\src\spk\spk1.jl:301 [inlined]
[4] spk_vector6(daf::Ephemerides.DAF, seg::Ephemerides.SPKSegmentType1, time::Float64)
@ Ephemerides C:\Users\jacky.julia\packages\Ephemerides\mE8ZP\src\spk\spk1.jl:115
[5] spk_vector6(daf::Ephemerides.DAF, link::Ephemerides.SPKLink, time::Float64)
@ Ephemerides C:\Users\jacky.julia\packages\Ephemerides\mE8ZP\src\transform.jl:102
[6] ephem_vector6(eph::Ephemerides.EphemerisProvider, from::Int64, to::Int64, time::Float64)
@ Ephemerides C:\Users\jacky.julia\packages\Ephemerides\mE8ZP\src\transform.jl:28
[7] #add_point_ephemeris!##2
@ C:\Users\jacky.julia\packages\FrameTransformations\rdn05\ext\EphemeridesExt.jl:30 [inlined]
[8] (::FunctionWrappers.CallWrapper{…})(f::EphemeridesExt.var"#add_point_ephemeris!##2#add_point_ephemeris!##3"{…}, arg1::Float64)
@ FunctionWrappers C:\Users\jacky.julia\packages\FunctionWrappers\Q5cBx\src\FunctionWrappers.jl:65
[9] macro expansion
@ C:\Users\jacky.julia\packages\FunctionWrappers\Q5cBx\src\FunctionWrappers.jl:137 [inlined]
[10] do_ccall
@ C:\Users\jacky.julia\packages\FunctionWrappers\Q5cBx\src\FunctionWrappers.jl:125 [inlined]
[11] FunctionWrapper
@ C:\Users\jacky.julia\packages\FunctionWrappers\Q5cBx\src\FunctionWrappers.jl:144 [inlined]
[12] _call
@ C:\Users\jacky.julia\packages\FunctionWrappersWrappers\9XR0m\src\FunctionWrappersWrappers.jl:12 [inlined]
[13] FunctionWrappersWrapper
@ C:\Users\jacky.julia\packages\FunctionWrappersWrappers\9XR0m\src\FunctionWrappersWrappers.jl:10 [inlined]
[14] _vector6
@ C:\Users\jacky.julia\packages\FrameTransformations\rdn05\src\Core\transform.jl:265 [inlined]
[15] _vector6(from::FrameTransformations.FramePointNode{…}, to::FrameTransformations.FramePointNode{…}, t::Float64)
@ FrameTransformations C:\Users\jacky.julia\packages\FrameTransformations\rdn05\src\Core\transform.jl:258
[16] _vector6(fr::FrameSystem{2, Float64, BarycentricDynamicalTime}, path::Vector{Int64}, axes::Int64, t::Float64)
@ FrameTransformations C:\Users\jacky.julia\packages\FrameTransformations\rdn05\src\Core\transform.jl:198
[17] vector6(fr::FrameSystem{2, Float64, BarycentricDynamicalTime}, from::Int64, to::Int64, ax::Symbol, t::Float64)
@ FrameTransformations C:\Users\jacky.julia\packages\FrameTransformations\rdn05\src\Core\transform.jl:188
[18] vector6(fr::FrameSystem{…}, from::Int64, to::Int64, axes::Symbol, ep::Epoch{…})
@ FrameTransformations C:\Users\jacky.julia\packages\FrameTransformations\rdn05\src\Core\transform.jl:146

[MicheleCeresoli]

Hi @jackyarndley, thanks for reporting, I will look into it when I get some free time. By any chance, would you be able to share a link to the BSP?

[jackyarndley]

1004083.zip

Thanks! I have attached a ZIP with the BSP inside here. Please let me know if you have any issues with it.