{"object":{"neo":false,"des":"5","spkid":"20000005","shortname":"5 Astraea","orbit_class":{"name":"Main-belt Asteroid","code":"MBA"},"orbit_id":"147","fullname":"5 Astraea (A845 XA)","kind":"an","prefix":null,"pha":false},"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"orbit":{"n_dop_obs_used":null,"rms":"0.48","moid":"1.11","epoch":"2461200.5","producer":"Otto Matic","not_valid_before":null,"soln_date":"2026-03-11 21:13:05","orbit_id":"147","last_obs":"2025-10-19","source":"JPL","equinox":"J2000","first_obs":"1845-12-15","elements":[{"value":"0.188","sigma":"2e-09","units":null,"name":"e","label":"e","title":"eccentricity"},{"sigma":"1.3e-09","value":"2.58","label":"a","title":"semi-major axis","name":"a","units":"au"},{"units":"au","name":"q","label":"q","title":"perihelion distance","value":"2.09","sigma":"5.2e-09"},{"label":"i","title":"inclination; angle with respect to x-y ecliptic plane","name":"i","units":"deg","sigma":"1.9e-07","value":"5.36"},{"label":"node","title":"longitude of the ascending node","units":"deg","name":"om","value":"141","sigma":"2.1e-06"},{"name":"w","units":"deg","label":"peri","title":"argument of perihelion","value":"359","sigma":"2.2e-06"},{"title":"mean anomaly","label":"M","units":"deg","name":"ma","sigma":"8.9e-07","value":"181"},{"title":"time of perihelion passage","label":"tp","name":"tp","units":"TDB","value":"2461949.721","sigma":"4.2e-06"},{"name":"per","units":"d","label":"period","title":"sidereal orbital period","value":"1510","sigma":"1.2e-06"},{"name":"n","units":"deg/d","title":"mean motion","label":"n","value":"0.238","sigma":"1.9e-10"},{"title":"aphelion distance","label":"Q","units":"au","name":"ad","value":"3.06","sigma":"1.6e-09"}],"n_del_obs_used":null,"two_body":null,"pe_used":"DE441","model_pars":[],"cov_epoch":"2457813.5","not_valid_after":null,"data_arc":"65687","n_obs_used":4395,"comment":null,"moid_jup":"1.97","condition_code":"0","t_jup":"3.396","sb_used":"SB441-N16"},"discovery":{"site":null,"cref":null,"citation":null,"discovery":"Discovered 1845-12-08 by Hencke, K. L. at Driesen","who":"Hencke, K. L.","name":null,"ref":"DISCOVERY.DB","location":"Driesen","date":"1845-Dec-08"}}