FA-12159 / Astronomical coordinate conventions / Member archive

A projected catalog motion is propagated as raw coordinate motion · case 04

A projected catalog motion is propagated as raw coordinate motion.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Stipulated linear RA adapter: raw rate is p/c for projected convention and p for raw convention. c=0 with projected rate yields None. No spherical integration claimed.

Why this case matters

Astronomical catalog and observation adapters must preserve the declared coordinate convention across software boundaries.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
projected motion	`16`	`28`	Failed

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