b33d63034b
Add v0.9.0 apparent position features: equatorial type, refraction, proper motion, light-time
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New equatorial type (24 bytes: RA/Dec/distance) captures apparent coordinates
of date — what the observation pipeline computes at precession step 3 but was
discarding before hour angle conversion. Matches telescope GoTo mount conventions.
24 new SQL functions (82 → 106 total):
- equatorial type I/O + 3 accessors (eq_ra, eq_dec, eq_distance)
- Satellite RA/Dec: eci_to_equatorial (topocentric), eci_to_equatorial_geo (geocentric)
- Solar system equatorial: planet/sun/moon/small_body_equatorial
- Atmospheric refraction: Bennett (1982) with domain clamp at -1 deg
- Refracted pass prediction: predict_passes_refracted (horizon at -0.569 deg)
- Stellar proper motion: star_observe_pm, star_equatorial_pm (Hipparcos/Gaia convention)
- Light-time correction: planet/sun/small_body_observe_apparent, *_equatorial_apparent
- DE equatorial variants: planet_equatorial_de, moon_equatorial_de
Also includes v0.8.0 orbital_elements type (MPC parser, small_body_observe),
GiST 0-based indexing fix, llms.txt updates, and doc improvements.
All 18 regression suites pass. Zero build warnings (GCC + Clang).
2026-02-21 15:31:46 -07:00
bca8b3e7eb
Add covariance output and condition number to OD solver (v0.5.0)
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Computes formal covariance (H^T·H)^{-1} via LAPACK dpotrf_/dpotri_
after DC convergence. Returns upper-triangle array (21 elements for
6-state, 28 for 7-state with B*), condition number from SVD, and
nstate count. Covariance is computed even for perfect-seed fits.
Bumps extension to v0.5.0 with full install SQL and migration path.
2026-02-17 16:15:44 -07:00
