{"object":{"orbit_class":{"name":"Hyperbolic Comet","code":"HYP"},"kind":"cu","spkid":"1001097","pha":false,"fullname":"C/1956 R1 (Arend-Roland)","orbit_id":"4","neo":false,"des":"1956 R1","prefix":"C"},"signature":{"source":"NASA/JPL Small-Body Database (SBDB) API","version":"1.3"},"phys_par":[],"orbit":{"not_valid_before":null,"epoch":"2436028.5","data_arc":"497","moid_jup":"1.61","not_valid_after":null,"last_obs":"1958-04-11","condition_code":null,"model_pars":[],"n_dop_obs_used":null,"elements":[{"value":"1","title":"eccentricity","name":"e","sigma":"4e-06","label":"e","units":null},{"label":"a","sigma":"21","name":"a","value":"-1.27e+03","title":"semi-major axis","units":"au"},{"units":"au","name":"q","value":"0.316","title":"perihelion distance","label":"q","sigma":"2.7e-06"},{"name":"i","title":"inclination; angle with respect to x-y ecliptic plane","value":"120","label":"i","sigma":"0.00013","units":"deg"},{"units":"deg","name":"om","title":"longitude of the ascending node","value":"216","label":"node","sigma":"0.00025"},{"name":"w","title":"argument of perihelion","value":"309","label":"peri","sigma":"0.00015","units":"deg"},{"units":"deg","value":"0.00199","title":"mean anomaly","name":"ma","sigma":"4.8e-05","label":"M"},{"units":"TDB","sigma":"0.00021","label":"tp","value":"2435936.532","title":"time of perihelion passage","name":"tp"},{"name":"per","title":"sidereal orbital period","value":null,"label":"period","sigma":null,"units":"d"},{"sigma":"5.2e-07","label":"n","title":"mean motion","value":"2.17e-05","name":"n","units":"deg/d"},{"name":"ad","title":"aphelion distance","value":null,"label":"Q","sigma":null,"units":"au"}],"sb_used":"SB441-N16","soln_date":"2021-04-15 23:29:12","cov_epoch":"2436028.5","two_body":null,"rms":"0.6","pe_used":"DE441","n_obs_used":57,"source":"JPL","first_obs":"1956-11-30","orbit_id":"4","comment":null,"equinox":"J2000","producer":"Otto Matic","t_jup":null,"moid":"0.239","n_del_obs_used":null}}