{"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"object":{"pha":false,"kind":"an","prefix":null,"neo":false,"des":"49","spkid":"20000049","orbit_id":"128","fullname":"49 Pales (A857 SB)","shortname":"49 Pales","orbit_class":{"code":"MBA","name":"Main-belt Asteroid"}},"discovery":{"citation":null,"site":null,"cref":null,"who":"Goldschmidt, H.","name":null,"discovery":"Discovered 1857-09-19 by Goldschmidt, H. at Paris","ref":"DISCOVERY.DB","location":"Paris","date":"1857-Sep-19"},"orbit":{"condition_code":"0","t_jup":"3.182","sb_used":"SB441-N16","not_valid_after":null,"cov_epoch":"2457323.5","data_arc":"59194","pe_used":"DE441","model_pars":[],"moid_jup":"1.67","comment":null,"n_obs_used":9991,"orbit_id":"128","source":"JPL","last_obs":"2025-12-14","two_body":null,"first_obs":"1863-11-20","elements":[{"name":"e","units":null,"title":"eccentricity","label":"e","value":"0.221","sigma":"2.2e-09"},{"label":"a","title":"semi-major axis","name":"a","units":"au","sigma":"3.4e-09","value":"3.1"},{"value":"2.41","sigma":"7.4e-09","label":"q","title":"perihelion distance","units":"au","name":"q"},{"value":"3.2","sigma":"1.2e-07","name":"i","units":"deg","title":"inclination; angle with respect to x-y ecliptic plane","label":"i"},{"sigma":"3.1e-06","value":"285","title":"longitude of the ascending node","label":"node","name":"om","units":"deg"},{"name":"w","units":"deg","title":"argument of perihelion","label":"peri","value":"113","sigma":"3.2e-06"},{"label":"M","title":"mean anomaly","units":"deg","name":"ma","value":"349","sigma":"1.5e-06"},{"value":"2461260.862","sigma":"8.1e-06","units":"TDB","name":"tp","label":"tp","title":"time of perihelion passage"},{"sigma":"3.3e-06","value":"1990","units":"d","name":"per","label":"period","title":"sidereal orbital period"},{"name":"n","units":"deg/d","label":"n","title":"mean motion","sigma":"3e-10","value":"0.181"},{"value":"3.78","sigma":"4.2e-09","title":"aphelion distance","label":"Q","units":"au","name":"ad"}],"equinox":"J2000","n_del_obs_used":null,"moid":"1.42","n_dop_obs_used":null,"rms":"0.31","soln_date":"2026-06-05 03:05:17","epoch":"2461200.5","producer":"Otto Matic","not_valid_before":null}}