https://github.com/cadojo/spicekernels.jl
Download and cache all of NASA's generic kernels within Julia!
https://github.com/cadojo/spicekernels.jl
Last synced: 3 months ago
JSON representation
Download and cache all of NASA's generic kernels within Julia!
- Host: GitHub
- URL: https://github.com/cadojo/spicekernels.jl
- Owner: cadojo
- License: mit
- Created: 2023-05-21T00:02:37.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2024-04-14T00:25:27.000Z (about 1 year ago)
- Last Synced: 2024-04-14T07:11:36.935Z (about 1 year ago)
- Language: Julia
- Homepage:
- Size: 1.04 MB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
> [!IMPORTANT]
> This project is active, but has been moved to [`cadojo/EphemerisSources.jl`](https://github.com/cadojo/EphemerisSources.jl).
---
# `SPICEKernels.jl`
_All General Kernels provided by NASA!_
> **Warning**
>
> This package is not affiliated with or endorsed by NASA, JPL, Caltech, or any
> other organization! This is an independently written package by an
> astrodynamics hobbyist.
## Installation
Choose one of the following two lines!
```julia
Pkg.add("SPICEKernels")
```
```julia
]add SPICEKernels # in the Julia REPL
```
## Usage
Inspect and download an ephemeris kernel from within Julia! The major version will not change without package _usage_ changing. New, modified, or removed kernels will increment the _patched_ version of this package.
```julia
julia> using SPICE, SPICEKernels
julia> furnsh(
de440s(), # position and velocity data for nearby planets
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
```
## Motivation
_Why this?_
This package allows you to check out what general kernels are available, all
from the Julia REPL / language server! Each kernel is represented by a type,
where the SPICE kernel flavor is encoded in Julia's type system.
Each requested kernel is cached by default, so there's no need
to download a kernel more than once!