{"categories":[{"label":"Scientific/Engineering","url":"https://skillfed.io/packages/category/scientific-engineering/8"}],"enrichment":{"capability":"Provides pre-packaged astronomical data files (ephemerides and Earth rotation data) for offline use, eliminating runtime downloads and network dependencies.","skillfed_tags":["astronomy","offline-data","ephemeris"],"use_cases":["Offline astronomical computation in environments without reliable internet access or behind restrictive network proxies.","Web applications requiring predictable startup time and avoiding runtime downloads that could timeout client requests.","Containerized deployments where reproducible, pre-cached data files reduce image size and startup latency.","Long-running services that need to compute moon phases, planet positions, or timescale data without external dependencies.","Development and testing workflows where consistent, versioned data ensures reproducible astronomical calculations."],"what_it_does":"skyfield-data is a data distribution package that bundles the ephemeris and Earth rotation files required for astronomical calculations. Instead of having dependent libraries download these large files at runtime (which can cause delays, timeouts, or network failures), this package installs them locally via pip, allowing offline computation and eliminating dependency on NASA JPL or IERS availability.\n\nThe package includes de421.bsp (planetary ephemeris) and finals2000A.all (Earth orientation data), with built-in expiration tracking. When you instantiate a Loader pointing to the data path provided by this package, computations use the local files without triggering downloads. The package emits warnings when files approach or pass their expiration dates, signaling when an upgrade is needed to maintain accuracy.","worth_installing":"Yes, if you need offline astronomical data files. Install alongside dependent libraries and point loaders to its data path. Be aware that data files expire (de421.bsp in 2053, finals2000A.all in 2026); you must upgrade the package before expiration to maintain accuracy. The 353-day gap since the last release suggests maintenance is not rapid, so monitor expiration dates and plan upgrades accordingly."},"id":"skyfield-data","links":{"html":"https://skillfed.io/packages/skyfield-data","md":"https://skillfed.io/packages/skyfield-data.md","pypi":"https://pypi.org/project/skyfield-data/"},"maintenance":{"status":"aging"},"meta":{"latest_release":"2025-08-26","license_spdx":null,"license_treatment":"permissive","name":"skyfield-data","python_support":"supports_current","summary":"Data package for Skyfield"},"popularity":{"monthly_downloads":98916,"position":13050,"tier":"top_15000"},"security":{"n_vulnerabilities":0},"version":"7.0.0"}