Astrophyzix Technical Transparency Report · Computational Methods & NASA Integration
Float64 · IEEE‑754 · Yoshida‑4 · Runge–Kutta · Dormand–Prince · N‑Body · WebGPU · VSOP87 · NASA APIs
✨ A detailed public outreach explainer in response to user questions about how Astrophyzix computes, refines, and visualises orbits of planets, potentially hazardous asteroids (PHA'S), comets and Near-Earth Objects (NEO's)
High‑Order Integrators NASA API Integration
Introduction
Astrophyzix is committed to transparent science communication. This report explains — in clear, technical detail — the numerical standards, integrators, GPU compute systems, and NASA data pipelines that power the Astrophyzix Digital Observatory.
Numerical Foundations — Float64 & IEEE‑754
Astrophyzix performs all orbital calculations using Float64, the 64‑bit floating‑point format defined by the IEEE‑754 standard. This provides:
- ~15–17 digits of precision
- stable rounding behaviour
- predictable error propagation
- compatibility with NASA Horizons and JPL SBDB data
Lower‑precision formats (Float32) introduce rounding errors that accumulate into kilometre‑scale deviations over long integrations. Float64 ensures:
- accurate MOID calculations
- stable long‑term orbit propagation
- precise close‑approach modelling
- correct gravitational‑keyhole geometry