This package has been out for some time, but I have been relatively quiet about it until now. I’ve released SPICEKernels.jl, which allows for simple Generic Kernel downloading, caching, and inspecting. I have a pipeline that crawls NASA’s website for changes to ephemeris files, and then uses SPICEApplications to print a summary of each file’s contents to docstrings.
All of the generic kernels are available as exported constants, so your IDE will autocomplete and show the kernel contents as docstrings. I hope this package makes using ephemeris data a bit easier: no manual downloading!
julia> using SPICE, SPICEKernels
julia> furnsh(
de440s(), # position and velocity data for major solar system bodies
latest_leapseconds_lsk(), # timekeeping, parsing epochs
gm_de440(), # mass parameters for major solar system bodies
pck00011(), # physical properties of major solar system bodies
)
help?> ?jup344
search: jup344 jup344_nameid jup344_s2003_j24 jup344_s2003_j24_nameid jup346 jup346_nameid
A SPK kernel of size 297.5 MB, linked from https://naif.jpl.nasa.gov [1]. Calling this variable like a function
will return a path to the file, downloading to scratchspace if necessary.
Extended Help
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
This kernel's link was sourced on 2023-09-29.
References
============
[1] https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/satellites/jup344.bsp
Description
=============
BRIEF -- Version 4.1.0, September 17, 2021 -- Toolkit Version N0067
Summary for: jup344.bsp
Bodies: EARTH BARYCENTER (3) AITNE (531) 557
JUPITER BARYCENTER (5) EURYDOME (532) 558
SUN (10) EUANTHE (533) 559
EARTH (399) EUPORIE (534) 560
HIMALIA (506) ORTHOSIE (535) 561
ELARA (507) SPONDE (536) 562
PASIPHAE (508) KALE (537) 563
SINOPE (509) PASITHEE (538) 564
LYSITHEA (510) HEGEMONE (539) 565
CARME (511) MNEME (540) 566
ANANKE (512) AOEDE (541) 567
LEDA (513) THELXINOE (542) 568
CALLIRRHOE (517) ARCHE (543) 569
THEMISTO (518) KALLICHORE (544) 570
MEGACLITE (519) HELIKE (545) 571
TAYGETE (520) CARPO (546) 572
CHALDENE (521) EUKELADE (547) JUPITER (599)
HARPALYKE (522) CYLLENE (548) 55501
KALYKE (523) KORE (549) 55502
IOCASTE (524) HERSE (550) 55503
ERINOME (525) 551 55504
ISONOE (526) 552 55505
PRAXIDIKE (527) DIA (553) 55506
AUTONOE (528) 554 55507
THYONE (529) 555
HERMIPPE (530) 556
Start of Interval (ET) End of Interval (ET)
----------------------------- -----------------------------
1799 DEC 27 00:00:00.000 2200 JAN 05 00:00:00.000