Calculadora Lunar

{
    "engine": {
        "name": "OC Scientific Lunar Engine",
        "version": "2.0.0",
        "ephemeris_model": "OCSE-Lite-2026A",
        "reference_frame": "ICRF/J2000",
        "observer_mode": "topocentric",
        "time_scales": {
            "jd_utc": 2461098.125,
            "jd_ut1": 2461098.125,
            "jd_tai": 2461098.1254282407,
            "jd_tt": 2461098.125868919,
            "delta_t_seconds": 75.074584,
            "delta_t_effective_seconds": 75.074584,
            "delta_t_input_seconds": 69,
            "delta_t_mode": "auto",
            "ut1_minus_utc_seconds": 0,
            "tai_minus_utc_seconds": 37,
            "leap_seconds_default": 37
        },
        "uncertainty": {
            "position_arcmin_typical": 5,
            "rise_set_minutes_typical": 3,
            "tracking_rate_arcsec_per_sec_typical": 3,
            "notes": "Truncated-series research-grade approximation; not intended for mission-critical navigation."
        },
        "methodology": {
            "rise_set": "Adaptive step + bisection root-finding with dynamic threshold (upper-limb/center, dip, refraction, parallax).",
            "phase": "Elongation + phase-angle photometry (k = (1 + cos(i)) / 2).",
            "topocentric": "RA/Dec -> horizontal with optional refraction and parallax correction.",
            "apparent_coordinates": "Low-order nutation + annual aberration correction applied to lunar apparent place."
        }
    },
    "observer": {
        "latitude_deg": -23.5505,
        "longitude_deg": -46.6333,
        "altitude_m": 760,
        "pressure_hpa": 1013.25,
        "temperature_c": 20,
        "humidity_pct": 60,
        "timezone": "America/Sao_Paulo",
        "ut1_minus_utc_seconds": 0,
        "observer_mode": "topocentric",
        "reference_frame": "ICRF/J2000",
        "use_refraction": true,
        "rise_set_disc": "upper_limb",
        "rise_set_refraction_deg": 0.5667,
        "event_step_seconds": 300,
        "tai_minus_utc_seconds": 37,
        "delta_t_mode": "auto",
        "delta_t_seconds": 69,
        "tracking_interval_seconds": 60
    },
    "time": {
        "utc_iso": "2026-02-26T15:00:00Z",
        "local_iso": "2026-02-26T12:00:00-03:00",
        "local_sidereal_deg": 334.839841,
        "local_sidereal_hms": "22:19:22"
    },
    "sun": {
        "ra_deg": 339.684221,
        "ra_hms": "22:38:44",
        "dec_deg": -8.559886,
        "dec_dms": "-08:33:35.59",
        "lambda_deg": 338.024984,
        "distance_au": 0.99015466,
        "distance_km": 148125028.738
    },
    "moon": {
        "ra_deg": 96.783965,
        "ra_hms": "06:27:08",
        "dec_deg": 28.00801,
        "dec_dms": "+28:00:28.84",
        "ra_mean_deg": 96.788086,
        "ra_mean_hms": "06:27:09",
        "dec_mean_deg": 28.005399,
        "dec_mean_dms": "+28:00:19.43",
        "lambda_deg": 96.006709,
        "lambda_mean_deg": 96.0105,
        "beta_deg": 4.711008,
        "distance_km": 370875.829,
        "distance_earth_radii": 58.147987,
        "distance_topocentric_km": 374837.954,
        "distance_topocentric_earth_radii": 58.769191,
        "angular_diameter_arcmin": 32.2086,
        "horizontal_parallax_deg": 0.985393
    },
    "topocentric": {
        "altitude_geometric_deg": -38.79002,
        "altitude_apparent_deg": -38.79002,
        "azimuth_deg": 71.971361,
        "hour_angle_deg": -121.944124,
        "refraction_deg": 0
    },
    "phase": {
        "name": "Crescente Gibosa",
        "fraction_0_1": 0.32772701,
        "age_days": 9.677972,
        "elongation_deg": 117.878929,
        "phase_angle_deg": 61.994412,
        "illumination_pct": 73.477884,
        "bright_limb_position_angle_deg": 275.20081,
        "parallactic_angle_deg": -99.128745
    },
    "upcoming_primary_phases": [
        {
            "phase_key": "new_moon",
            "phase_name": "Lua Nova",
            "target_phase_angle_deg": 0,
            "local_iso": "2026-03-18T21:44:14-03:00",
            "local_label": "18/03/2026 21:44",
            "utc_iso": "2026-03-19T00:44:14Z",
            "approx_uncertainty_minutes": 60
        },
        {
            "phase_key": "first_quarter",
            "phase_name": "Quarto Crescente",
            "target_phase_angle_deg": 90,
            "local_iso": "2026-03-25T16:00:20-03:00",
            "local_label": "25/03/2026 16:00",
            "utc_iso": "2026-03-25T19:00:20Z",
            "approx_uncertainty_minutes": 60
        },
        {
            "phase_key": "full_moon",
            "phase_name": "Lua Cheia",
            "target_phase_angle_deg": 180,
            "local_iso": "2026-03-03T08:17:49-03:00",
            "local_label": "03/03/2026 08:17",
            "utc_iso": "2026-03-03T11:17:49Z",
            "approx_uncertainty_minutes": 60
        },
        {
            "phase_key": "last_quarter",
            "phase_name": "Quarto Minguante",
            "target_phase_angle_deg": 270,
            "local_iso": "2026-03-11T06:50:06-03:00",
            "local_label": "11/03/2026 06:50",
            "utc_iso": "2026-03-11T09:50:06Z",
            "approx_uncertainty_minutes": 60
        }
    ],
    "tracking_rates": {
        "interval_seconds": 60,
        "dra_deg_per_min": 0.011040126,
        "ddec_deg_per_min": -0.000875707,
        "dalt_deg_per_min": 0.206805294,
        "daz_deg_per_min": -0.041650394,
        "dra_arcsec_per_sec": 0.662407541,
        "ddec_arcsec_per_sec": -0.052542423,
        "dalt_arcsec_per_sec": 12.408317614,
        "daz_arcsec_per_sec": -2.499023651
    },
    "anomalistic_orbit": {
        "distance_km": 370875.829,
        "mean_anomaly_deg": 26.486124,
        "distance_from_perigee_km": 14375.829,
        "distance_from_apogee_km": 35824.171,
        "near_perigee_pct": 71.36289,
        "near_apogee_pct": 28.63711,
        "orbital_trend": "afastando_do_perigeu",
        "position_label": "em_direcao_ao_apogeu",
        "supermoon_candidate": false,
        "perigee_reference_km": 356500,
        "apogee_reference_km": 406700
    },
    "orientation": {
        "colongitude_deg": 207.981724,
        "libration_longitude_deg_approx": 2.192279,
        "libration_latitude_deg_approx": 4.650573,
        "subsolar_lon_deg_approx": -62.018276,
        "subsolar_lat_deg_approx": -4.711008,
        "subobserver_lon_deg_approx": 117.981724,
        "subobserver_lat_deg_approx": -2.355504
    },
    "apparent_corrections": {
        "nutation_longitude_deg": 0.001937565,
        "nutation_obliquity_deg": 0.002450263,
        "annual_aberration_longitude_deg": -0.005748204,
        "true_obliquity_deg": 23.438340127
    },
    "events": {
        "moonrise_local": "15:08:42",
        "moonset_local": "00:45:14",
        "transit_local": "20:29:59",
        "transit_altitude_deg": 38.255619,
        "transit_local_sidereal_deg": 102.684746,
        "transit_local_sidereal_hms": "06:50:44",
        "event_timezone": "America/Sao_Paulo",
        "rise_set_status": "normal",
        "rise_set_method": "adaptive-scan+binary-root",
        "horizon_threshold_deg": -0.65734,
        "horizon_components": {
            "disc_mode": "upper_limb",
            "semi_diameter_deg": 0.268405,
            "dip_deg": 0.807745,
            "refraction_deg": 0.5667,
            "parallax_deg": 0.98551
        }
    },
    "tides": {
        "coefficient_0_100_approx": 71,
        "regime": "intermediaria",
        "classification_source": "spring-neap approximation from synodic geometry"
    }
}