Ryan Malloy
b33d63034b
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).
25 lines
761 B
C
25 lines
761 B
C
/*
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* kepler.h -- Two-body Keplerian position from classical elements
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*
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* Exposes kepler_position() for use by orbital_elements_type.c
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* and any future code that needs raw Keplerian propagation.
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*/
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#ifndef PG_ORRERY_KEPLER_H
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#define PG_ORRERY_KEPLER_H
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/*
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* Two-body Keplerian position from classical orbital elements.
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*
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* q (AU), e, inc/omega/Omega (radians), T_peri (JD), jd (JD).
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* Output: pos[3] in AU, ecliptic J2000 frame.
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*
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* Handles elliptic (e<0.99), near-parabolic (0.99<=e<=1.01),
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* and hyperbolic (e>1.01) orbits.
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*/
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extern void kepler_position(double q, double e, double inc,
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double omega, double Omega,
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double T_peri, double jd, double pos[3]);
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#endif /* PG_ORRERY_KEPLER_H */
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