{"id":48438,"slug":"20413-josephdemartini","name":"20413 Josephdemartini","domain":"solar-system","class":"asteroid","otype":null,"otype_label":"Asteroid","ra":null,"dec":null,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":0,"simbad_oid":null,"gaia_dr3":null,"jpl_spkid":20020413,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":1,"first_seen":"2026-08-14T16:44:29.897360+00:00","updated_at":"2026-08-14T17:22:17.097108+00:00","identifiers":["20413","20413 Josephdemartini","20413 Josephdemartini (1998 QY91)","Josephdemartini"],"measurements":[],"orbit":{"object_id":48438,"epoch_jd":2461200.5,"a_au":2.313,"e":0.2385,"i_deg":3.47,"om_deg":50.24,"w_deg":348.39,"ma_deg":303.61,"q_au":1.761,"ad_au":2.86,"period_d":1280.0,"moid_au":0.768,"orbit_class":"MBA","neo":false,"pha":false,"h_mag":15.3,"diameter_km":2.347,"albedo":0.386,"rot_period_h":2.221,"spec_b":null,"spec_t":null,"condition_code":"0","n_obs":2360,"arc_days":17924,"first_obs":"1976-05-30","last_obs":"2025-06-26","producer":"Otto Matic","source":"jpl-sbdb","updated_at":"2026-08-14T17:22:17.097108+00:00"},"exoplanet":null,"sources":[]}