Accurate planet positions: JPL-fitted corrections + Earth–Moon wobble - #835
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…hot and camera traces
… test covers the mechanism)
DoD audit READY: full suite + typecheck green locally (stacked PR, no GitHub CI), 31/31 boxes, smoke passed, deletion audit applied (~85 LOC incl. ruled test drop), no new TODOs.
# Conflicts: # docs/BACKLOG.md # tests/fixtures/bodyStatesJ2000.json # tests/fixtures/camera/driverGoldenTrace.json # tests/fixtures/camera/settleGoldenTrace.json # tests/services/engine/frame/deriveBodyStates.test.ts # tools/perf/perfScenarios.ts
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Stacked on #834. Spec
docs/superpowers/specs/2026-10-04-accurate-planet-positions-design.md, plandocs/superpowers/plans/2026-10-04-accurate-planet-positions.md.The eight planets match JPL DE (Horizons) to ≤ 1,000 km over 1900–2100 (frozen at the edge value outside), via a generated correction series on top of the Keplerian elements: cubic + 525 fitted sinusoid terms, verified on every 1-day row. Earth wobbles about the Earth–Moon barycentre via a one-row pair table.
ephemerisCorrectionMpcevaluator +EphemerisCorrectiontypenpm run fetch-horizons-planets(raw-registry entry, README) andnpm run build-planet-ephemeris(FFT + golden-section frequency picking, Gram–Schmidt least squares, dense verification)planetEphemerisCorrections.generated.tsderiveBodyStates+BARYCENTRIC_PAIRS(in progress)🤖 Generated with Claude Code