This package provides a Python implementation for computations of the position and velocity of an earth-orbiting satellite, given the satellite’s TLE orbital elements from a source like https://celestrak.org/.

It implements the most recent version of SGP4, and is regularly run against the SGP4 test suite to make sure that its satellite position predictions agree to within 0.1 mm with the predictions of the standard distribution of the algorithm. This error is far less than the 1–3 km/day by which satellites themselves deviate from the ideal orbits described in TLE files.

CRDS is a package used for working with astronomical reference files for the HST and JWST telescopes. CRDS is useful for performing various operations on reference files or reference file assignment rules. CRDS is used to assign, check, and compare reference files and rules, and also to predict those datasets which should potentially be reprocessed due to changes in reference files or assignment rules. CRDS has versioned rules which define the assignment of references for each type and instrument configuration. CRDS has web sites corresponding to each project http://hst-crds.stsci.edu or https://jwst-crds.stsci.edu/ which record information about reference files and provide related services.

dcor is distance correlation and energy statistics in Python.

E-statistics are functions of distances between statistical observations in metric spaces. Distance covariance and distance correlation are dependency measures between random vectors introduced in [SRB07] with a simple E-statistic estimator.

This package offers functions for calculating several E-statistics such as:

• estimator of the energy distance [SR13]

• biased and unbiased estimators of distance covariance and distance correlation [SRB07]

• estimators of the partial distance covariance and partial distance covariance [SR14]

EmPy is a system for embedding Python expressions and statements in template text; it takes an EmPy source file, processes it, and produces output. This is accomplished via expansions, which are special signals to the EmPy system and are set off by a special prefix (by default the at sign, @). EmPy can expand arbitrary Python expressions and statements in this way, as well as a variety of special forms. Textual data not explicitly delimited in this way is sent unaffected to the output, allowing Python to be used in effect as a markup language. Also supported are callbacks via hooks, recording and playback via diversions, and dynamic, chainable filters. The system is highly configurable via command line options and embedded commands.

ddgr provides a command-line interface to DuckDuckGo search engine.

Features:

• Fast and clean (no ads, stray URLs or clutter), custom color

• Navigate result pages from omniprompt, open URLs in browser

• Search and option completion scripts for Bash, Zsh and Fish

• DuckDuckGo Bang support (along with completion)

• Open the first result directly in browser (as in I'm Feeling Ducky)

• Non-stop searches: fire new searches at omniprompt without exiting

• Keywords (e.g. filetype:mime, site:somesite.com) support

• Specify region, disable safe search

• HTTPS proxy support, Do Not Track set, optionally disable User Agent

• Support custom url handler script or cmdline utility

• Comprehensive documentation, man page with handy usage examples

• Minimal dependencies

sbpy is a package for small-body planetary astronomy. It is meant to supplement functionality provided by astropy with functions and methods that are frequently used in the context of planetary astronomy with a clear focus on asteroids and comets. Features:

• observation planning tools tailored to moving objects

• photometry models for resolved and unresolved observations

• wrappers and tools for astrometry and orbit fitting

• spectroscopy analysis tools and models for reflected solar light and emission from gas

• cometary gas and dust coma simulation and analysis tools

• asteroid thermal models for flux estimation and size/albedo estimation

• image enhancement tools for comet comae and PSF subtraction tools

• lightcurve and shape analysis tools

• access tools for various databases for orbital and physical data, as well as ephemerides services

arcp provides functions for creating arcp_ URIs, which can be used for identifying or parsing hypermedia files packaged in an archive or package, like a ZIP file. arcp URIs can be used to consume or reference hypermedia resources bundled inside a file archive or an application package, as well as to resolve URIs for archive resources within a programmatic framework. This URI scheme provides mechanisms to generate a unique base URI to represent the root of the archive, so that relative URI references in a bundled resource can be resolved within the archive without having to extract the archive content on the local file system. An arcp URI can be used for purposes of isolation (e.g. when consuming multiple archives), security constraints (avoiding "climb out" from the archive), or for externally identiyfing sub-resources referenced by hypermedia formats.

Mercurial Python library.

Python SSDP library

Python ESN implementation.

Simple Python testing framework

Statistical genetics toolkit.

The tree sequence toolkit.

Library for OAuth version 1.0a.

Decentralised, minimalist microblogging service for hackers.

Compression utilities for tree sequences.

Black is the uncompromising Python code formatter.

Python wrapper for junegunn's fuzzyfinder fzf.

STScI tools and algorithms used in calibration pipelines.

Foreign Function Interface for Python calling C code.

This package provides multiplicatively convolutional fast integral transforms.

This package provides opiniotated Python test framework prototype.

GPX file parser and GPS track manipulation library.

This package provides a simple, correct PEP517 package builder