{"orbit":{"n_dop_obs_used":null,"data_arc":"63754","epoch":"2461200.5","equinox":"J2000","comment":null,"moid_jup":"2.43","t_jup":"3.340","not_valid_before":null,"condition_code":"0","n_del_obs_used":null,"elements":[{"label":"e","units":null,"sigma":"4.3e-09","title":"eccentricity","name":"e","value":"0.188"},{"sigma":"1.5e-09","title":"semi-major axis","name":"a","value":"2.64","label":"a","units":"au"},{"name":"q","value":"2.15","title":"perihelion distance","sigma":"1.1e-08","units":"au","label":"q"},{"sigma":"3.7e-07","title":"inclination; angle with respect to x-y ecliptic plane","value":"11.8","name":"i","label":"i","units":"deg"},{"sigma":"2.2e-06","title":"longitude of the ascending node","name":"om","value":"293","label":"node","units":"deg"},{"name":"w","value":"98.5","title":"argument of perihelion","sigma":"2.5e-06","units":"deg","label":"peri"},{"sigma":"1.7e-06","title":"mean anomaly","name":"ma","value":"160","label":"M","units":"deg"},{"sigma":"7.2e-06","title":"time of perihelion passage","name":"tp","value":"2460504.739","label":"tp","units":"TDB"},{"label":"period","units":"d","sigma":"1.3e-06","title":"sidereal orbital period","name":"per","value":"1570"},{"name":"n","value":"0.23","title":"mean motion","sigma":"1.9e-10","units":"deg/d","label":"n"},{"sigma":"1.8e-09","title":"aphelion distance","value":"3.14","name":"ad","label":"Q","units":"au"}],"soln_date":"2026-06-16 11:32:04","last_obs":"2026-03-22","not_valid_after":null,"rms":"0.43","sb_used":"SB441-N16","model_pars":[],"cov_epoch":"2457933.5","orbit_id":"109","pe_used":"DE441","moid":"1.19","source":"JPL","producer":"Otto Matic","two_body":null,"n_obs_used":5326,"first_obs":"1851-09-02"},"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"discovery":{"ref":"DISCOVERY.DB","date":"1851-Jul-29","who":"De Gasparis, A.","citation":null,"location":"Naples","site":null,"cref":null,"name":null,"discovery":"Discovered 1851-07-29 by De Gasparis, A. at Naples"},"object":{"orbit_id":"109","kind":"an","fullname":"15 Eunomia (A851 OA)","orbit_class":{"code":"MBA","name":"Main-belt Asteroid"},"neo":false,"des":"15","prefix":null,"pha":false,"shortname":"15 Eunomia","spkid":"20000015"}}