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AndrewAnnex
SpiceyPy
Python2024–2025
AndrewAnnex / SpiceyPy

SpiceyPy

SpiceyPy: a Pythonic Wrapper for the SPICE Toolkit.

2Distinct people
3Mentions
0Explicit recommenders
495GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

SpiceyPy: a Pythonic Wrapper for the SPICE Toolkit.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week3 dated mentions

Observed mentions: 2024-11-18 17:56:00 UTC to 2025-06-26 02:55:14 UTC. Weeks start Monday, UTC.

012024-11-18 00:00:00 UTC to 2024-11-25 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsNov 182024-11-25 00:00:00 UTC to 2024-12-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-02 00:00:00 UTC to 2024-12-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-09 00:00:00 UTC to 2024-12-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-16 00:00:00 UTC to 2024-12-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-23 00:00:00 UTC to 2024-12-30 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-30 00:00:00 UTC to 2025-01-06 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2025-01-06 00:00:00 UTC to 2025-01-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-13 00:00:00 UTC to 2025-01-20 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-20 00:00:00 UTC to 2025-01-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-27 00:00:00 UTC to 2025-02-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-02-03 00:00:00 UTC to 2025-02-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-02-10 00:00:00 UTC to 2025-02-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-02-17 00:00:00 UTC to 2025-02-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-02-24 00:00:00 UTC to 2025-03-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-03 00:00:00 UTC to 2025-03-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsMar 32025-03-10 00:00:00 UTC to 2025-03-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-17 00:00:00 UTC to 2025-03-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-24 00:00:00 UTC to 2025-03-31 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-31 00:00:00 UTC to 2025-04-07 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-07 00:00:00 UTC to 2025-04-14 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-14 00:00:00 UTC to 2025-04-21 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-21 00:00:00 UTC to 2025-04-28 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-28 00:00:00 UTC to 2025-05-05 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-05-05 00:00:00 UTC to 2025-05-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-05-12 00:00:00 UTC to 2025-05-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-05-19 00:00:00 UTC to 2025-05-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-05-26 00:00:00 UTC to 2025-06-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-06-02 00:00:00 UTC to 2025-06-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-06-09 00:00:00 UTC to 2025-06-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-06-16 00:00:00 UTC to 2025-06-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-06-23 00:00:00 UTC to 2025-06-30 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJun 23

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Nov 182024-11-18 00:00:00 UTC2024-11-25 00:00:00 UTC101
Nov 252024-11-25 00:00:00 UTC2024-12-02 00:00:00 UTC000
Dec 22024-12-02 00:00:00 UTC2024-12-09 00:00:00 UTC000
Dec 92024-12-09 00:00:00 UTC2024-12-16 00:00:00 UTC000
Dec 162024-12-16 00:00:00 UTC2024-12-23 00:00:00 UTC000
Dec 232024-12-23 00:00:00 UTC2024-12-30 00:00:00 UTC000
Dec 302024-12-30 00:00:00 UTC2025-01-06 00:00:00 UTC101
Jan 62025-01-06 00:00:00 UTC2025-01-13 00:00:00 UTC000
Jan 132025-01-13 00:00:00 UTC2025-01-20 00:00:00 UTC000
Jan 202025-01-20 00:00:00 UTC2025-01-27 00:00:00 UTC000
Jan 272025-01-27 00:00:00 UTC2025-02-03 00:00:00 UTC000
Feb 32025-02-03 00:00:00 UTC2025-02-10 00:00:00 UTC000
Feb 102025-02-10 00:00:00 UTC2025-02-17 00:00:00 UTC000
Feb 172025-02-17 00:00:00 UTC2025-02-24 00:00:00 UTC000
Feb 242025-02-24 00:00:00 UTC2025-03-03 00:00:00 UTC000
Mar 32025-03-03 00:00:00 UTC2025-03-10 00:00:00 UTC000
Mar 102025-03-10 00:00:00 UTC2025-03-17 00:00:00 UTC000
Mar 172025-03-17 00:00:00 UTC2025-03-24 00:00:00 UTC000
Mar 242025-03-24 00:00:00 UTC2025-03-31 00:00:00 UTC000
Mar 312025-03-31 00:00:00 UTC2025-04-07 00:00:00 UTC000
Apr 72025-04-07 00:00:00 UTC2025-04-14 00:00:00 UTC000
Apr 142025-04-14 00:00:00 UTC2025-04-21 00:00:00 UTC000
Apr 212025-04-21 00:00:00 UTC2025-04-28 00:00:00 UTC000
Apr 282025-04-28 00:00:00 UTC2025-05-05 00:00:00 UTC000
May 52025-05-05 00:00:00 UTC2025-05-12 00:00:00 UTC000
May 122025-05-12 00:00:00 UTC2025-05-19 00:00:00 UTC000
May 192025-05-19 00:00:00 UTC2025-05-26 00:00:00 UTC000
May 262025-05-26 00:00:00 UTC2025-06-02 00:00:00 UTC000
Jun 22025-06-02 00:00:00 UTC2025-06-09 00:00:00 UTC000
Jun 92025-06-09 00:00:00 UTC2025-06-16 00:00:00 UTC000
Jun 162025-06-16 00:00:00 UTC2025-06-23 00:00:00 UTC000
Jun 232025-06-23 00:00:00 UTC2025-06-30 00:00:00 UTC101

What Hacker News says

3 sources
Notes for such efforts: From https://news.ycombinator.com/item?id=44043518#44053779 re: deep learning poised: > jax-cfd mentions phiflow > PhiFlow: https://github.com/tum-pbs/PhiFlow/ >> A differentiable PDE solving framework for machine learning SymPy can solve ODEs and some PDEs. sympy.solvers.pde: https://docs.sympy.org/latest/modules/solvers/pde.html SymPy's sympy.utilities.lambdify.lambdify() compiles things to faster solvers like CPython math module, mpmath, NumPy, SciPy, CuPy, JAX, TensorFlow, SymPy, numexpr, and PyTorch. https://docs.sympy.org/latest/modules/utilities/lambdify.htm... dynamicslab/pysindy; https://github.com/dynamicslab/pysindy : > A package for the sparse identification of nonlinear dynamical systems from data A question about fundamental Anosov flows and CFD in pysindy; due to "Flow Proof Helps Mathematicians Find
Read the rest
Stability in Chaos" (2023) https://www.quantamagazine.org/flow-proof-helps-mathematicia... .. https://github.com/dynamicslab/pysindy/issues/383 : /? site:github.com anosov https://www.google.com/search?q=site%3Agithub.com+anosov > GitHub topic: quantum-fluids: https://github.com/topics/quantum-fluids GitHub topic: Gross-Pitaevskii: https://github.com/topics/gross-pitaevskii OSIRIS-code can simulate laser emissions in plasma, nonlinear optics in plasma,; and supports Checkpointing and thus probably parallelization; https://news.ycombinator.com/context?id=44371059 For simulations of gravity-assisted spacecraft trajectories, in n-body (vortical fluidic) gravity: > JPL SPICE toolkit: https://naif.jpl.nasa.gov/naif/toolkit.html > SpiceyPy: https://github.com/AndrewAnnex/SpiceyPy "Gravity as a fluid dynamic phenomenon in a superfluid quantum space. Fluid quantum gravity and relativity." (2017) https://hal.science/hal-01248015/ : > [ Bernoulli, Navier-Stokes, Gross-Pitaevskii vortices in a field with curl ] Shouldn't solving NS also solve for n-body gravity? Anosov diffeomorphism; hyperbolicity of complex nonlinear dynamic fluid systems, Lyapunov exponents : https://en.wikipedia.org/wiki/Anosov_diffeomorphism Curl: https://en.wikipedia.org/wiki/Curl_(mathematics) Vorticity: https://en.wikipedia.org/wiki/Vorticity Bernoulli's principle: https://en.wikipedia.org/wiki/Bernoulli%27s_principle Gross-Pitaevskii equation: https://en.wikipedia.org/wiki/Gross%E2%80%93Pitaevskii_equat... Navier-Stokes equations: https://en.wikipedia.org/wiki/Navier%E2%80%93Stokes_equation...
In Google DeepMind team up to solve the Navier-Stokes million-dollar problem
This group at JPL is the canonical source for solar system ephemeris, including planets and small bodies. The underlying models are numerically integrated equations of motion that I’m sure include all kinds of corrections, especially for bodies of great interest — such as Mars, or moons being considered for science visits. I used to use the python package “jplephem” to support ephemeris queries, but I understand that SpiceyPy is a more modern replacement (https://github.com/AndrewAnnex/SpiceyPy). They all, I believe, use the same underlying sets of “spk” files containing coded ephemeris.
In JPL Horizons on-line solar system data and ephemeris computation service
Is it possible to focus on a reflection on the Voyager spacecraft; or how aren't communications ever affected by lack of line of sight? So there was no way to flip around and counter-thrust due to the velocity by that point in Voyager's trajectory (without a gravitationally-assisted slowdown or waiting for planetary orbits to align the same or in a feasible way) FWICS; /? spirograph ... "Hypotrochoid" ... Hypotrochoid orbit Aren't there hypotrochoid orbits to accelerate and decelerate using planetary gravity; gravity assist Gravity assist: https://en.wikipedia.org/wiki/Gravity_assist - https://space.stackexchange.com/questions/10021/how-are-grav... : > How can I intuitively understand gravity assists?: > Aim closer to the planet for a lower pass for a greater change in direction (and velocity from an external frame of reference), farther
Read the rest
from the planet for a smaller change; aim ahead of the planet for a slower resulting external velocity, behind for a higher velocity: gravity assist guide (image from this KSP tutorial) - Vindication! KSP is what I probably would have used to answer questions like this; though KSP2 doesn't work in Proton-GE on Steam on Linux and they've since disbanded / adjourned the KSP2 team fwiu. - JPL SPICE toolkit: https://naif.jpl.nasa.gov/naif/toolkit.html - SpiceyPy; src: https://github.com/AndrewAnnex/SpiceyPy docs: https://spiceypy.readthedocs.io/en/stable/ - SpiceyPy docs > Lessons: https://spiceypy.readthedocs.io/en/stable/lessonindex.html : - > various SPICE lessons provided by the NAIF translated to use python code examples TY for the explanation. Hopefully cost effective solar sails are feasible. FWIU SQR Superfluid Quantum Relativity doesn't matter for satellites at Earth-Sun Lagrangian points either; but, at Lagrangian points, don't they have to use thrust to rotate to account for the gravitational 'wind' due to additional local masses in the (probably vortical) n-body attractor system?
In Voyager 1 breaks its silence with NASA via radio transmitter not used since 1981

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