{"object":{"orbit_id":"IAUCAT03","kind":"cn","pha":false,"prefix":"D","orbit_class":{"name":"Jupiter-family Comet","code":"JFc"},"fullname":"5D/Brorsen","neo":true,"spkid":"1000505","des":"5D"},"discovery":{"who":"Brorsen, T.","cref":null,"location":"Kiel, Germany","ref":"comet.dis","name":null,"citation":null,"date":"1846-Feb-26","site":null,"discovery":"Discovered 1846-02-26 by Brorsen, T. at Kiel, Germany"},"orbit":{"n_obs_used":127,"two_body":null,"equinox":"J2000","source":"JPL","moid":"0.367","n_dop_obs_used":null,"not_valid_before":null,"t_jup":"2.467","last_obs":null,"cov_epoch":"2407440.5","data_arc":null,"model_pars":[{"title":"non-grav. radial accel.","kind":"SET","sigma":null,"units":"au/d^2","value":"1.27E-8","name":"A1","desc":"non-gravitational radial acceleration parameter","n":0},{"units":"au/d^2","sigma":null,"title":"non-grav. transverse accel.","kind":"SET","n":0,"name":"A2","value":"0.1343E-8","desc":"non-gravitational transverse acceleration parameter"}],"rms":null,"not_valid_after":null,"sb_used":null,"pe_used":"DE405","epoch":"2407440.5","first_obs":null,"elements":[{"units":null,"sigma":null,"label":"e","name":"e","title":"eccentricity","value":"0.81"},{"units":"au","sigma":null,"label":"a","title":"semi-major axis","name":"a","value":"3.1"},{"label":"q","units":"au","sigma":null,"title":"perihelion distance","name":"q","value":"0.59"},{"units":"deg","sigma":null,"label":"i","name":"i","title":"inclination; angle with respect to x-y ecliptic plane","value":"29.4"},{"units":"deg","sigma":null,"label":"node","title":"longitude of the ascending node","name":"om","value":"103"},{"sigma":null,"units":"deg","label":"peri","value":"14.9","title":"argument of perihelion","name":"w"},{"value":"0.174","title":"mean anomaly","name":"ma","sigma":null,"units":"deg","label":"M"},{"label":"tp","units":"TDB","sigma":null,"name":"tp","title":"time of perihelion passage","value":"2407439.534"},{"units":"d","sigma":null,"label":"period","name":"per","title":"sidereal orbital period","value":"1990"},{"units":"deg/d","sigma":null,"label":"n","name":"n","title":"mean motion","value":"0.18"},{"value":"5.61","title":"aphelion distance","name":"ad","sigma":null,"units":"au","label":"Q"}],"condition_code":null,"comment":null,"moid_jup":null,"n_del_obs_used":null,"soln_date":null,"orbit_id":"IAUCAT03","producer":"Landgraf"},"signature":{"source":"NASA/JPL Small-Body Database (SBDB) API","version":"1.3"}}