{"id":49680,"slug":"21655-niklauswirth","name":"21655 Niklauswirth","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":20021655,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":2,"first_seen":"2026-08-14T16:44:29.897360+00:00","updated_at":"2026-08-14T17:22:17.097108+00:00","identifiers":["21655","21655 Niklauswirth","21655 Niklauswirth (1999 PC1)","Niklauswirth"],"measurements":[],"orbit":{"object_id":49680,"epoch_jd":2461200.5,"a_au":2.647,"e":0.1785,"i_deg":13.43,"om_deg":293.29,"w_deg":7.87,"ma_deg":166.03,"q_au":2.174,"ad_au":3.12,"period_d":1570.0,"moid_au":1.16,"orbit_class":"MBA","neo":false,"pha":false,"h_mag":13.34,"diameter_km":6.609,"albedo":0.194,"rot_period_h":18.8016,"spec_b":null,"spec_t":null,"condition_code":"0","n_obs":4478,"arc_days":12516,"first_obs":"1991-12-28","last_obs":"2026-04-04","producer":"Otto Matic","source":"jpl-sbdb","updated_at":"2026-08-14T17:22:17.097108+00:00"},"exoplanet":null,"sources":[]}