{"orbit":{"two_body":null,"n_del_obs_used":null,"equinox":"J2000","first_obs":"1899-12-07","elements":[{"units":null,"name":"e","title":"eccentricity","label":"e","value":"0.0695","sigma":"2.7e-09"},{"sigma":"3.4e-09","value":"3.06","label":"a","title":"semi-major axis","units":"au","name":"a"},{"label":"q","title":"perihelion distance","units":"au","name":"q","value":"2.85","sigma":"7.1e-09"},{"sigma":"2.3e-07","value":"15.2","units":"deg","name":"i","title":"inclination; angle with respect to x-y ecliptic plane","label":"i"},{"units":"deg","name":"om","label":"node","title":"longitude of the ascending node","sigma":"1e-06","value":"89"},{"name":"w","units":"deg","label":"peri","title":"argument of perihelion","value":"337","sigma":"2.4e-06"},{"sigma":"2.3e-06","value":"221","title":"mean anomaly","label":"M","name":"ma","units":"deg"},{"name":"tp","units":"TDB","title":"time of perihelion passage","label":"tp","sigma":"1.3e-05","value":"2461955.997"},{"sigma":"3.3e-06","value":"1960","label":"period","title":"sidereal orbital period","name":"per","units":"d"},{"label":"n","title":"mean motion","units":"deg/d","name":"n","sigma":"3.1e-10","value":"0.184"},{"name":"ad","units":"au","label":"Q","title":"aphelion distance","value":"3.28","sigma":"3.6e-09"}],"last_obs":"2026-04-13","source":"JPL","orbit_id":"150","soln_date":"2026-06-05 03:36:51","not_valid_before":null,"epoch":"2461200.5","producer":"Otto Matic","moid":"1.87","rms":"0.41","n_dop_obs_used":null,"sb_used":"SB441-N16","t_jup":"3.175","condition_code":"0","moid_jup":"1.99","n_obs_used":5063,"comment":null,"data_arc":"46148","cov_epoch":"2458099.5","not_valid_after":null,"model_pars":[],"pe_used":"DE441"},"object":{"orbit_id":"150","fullname":"451 Patientia (A899 XA)","shortname":"451 Patientia","orbit_class":{"name":"Main-belt Asteroid","code":"MBA"},"neo":false,"des":"451","spkid":"20000451","pha":false,"prefix":null,"kind":"an"},"phys_par":[{"desc":"absolute magnitude (magnitude at 1 au from Sun and observer)","name":"H","units":null,"notes":"IRAS observations used: 17","value":"6.78","title":"absolute magnitude","sigma":null,"ref":"MPO950954"},{"desc":"magnitude slope parameter used in the standard asteroid H/G magnitude law","name":"G","units":null,"notes":"Fit","value":"0.19","title":"magnitude slope","ref":"PDS3 (MPC 17258)","sigma":null},{"ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)","sigma":"2.780","title":"diameter","notes":null,"value":"253.900","desc":"effective body diameter","name":"diameter","units":"km"},{"value":"9.727","notes":"REFERENCE LIST:[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.], [Michalowski, T.; Kaasalainen, M.; Marciniak, A.; Denchev, P.; et al. (2005) Astron. Astrophys. 443, 329-335.], [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]","name":"rot_per","units":"h","desc":"body rotation period (synodic)","ref":"LCDB (Rev. 2023-October); Warner et al., 2009","sigma":null,"title":"rotation period"},{"title":"geometric albedo","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)","sigma":"0.006","desc":"geometric albedo","units":null,"name":"albedo","value":"0.085","notes":null},{"desc":"color index B-V magnitude difference","units":null,"name":"BV","value":"0.666","notes":"#obs=10; phase (min.=1.70, mean=9.61, max.=18.97) deg.","title":"B-V","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","sigma":"0.010"},{"ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","sigma":"0.044","title":"U-B","notes":"#obs=9; phase (min.=1.70, mean=9.60, max.=17.68) deg.","value":"0.310","units":null,"name":"UB","desc":"color index U-B magnitude difference"},{"title":"Tholen spectral type","ref":"EAR-A-5-DDR-TAXONOMY-V4.0","sigma":null,"desc":"Tholen spectral taxonomic classification","units":null,"name":"spec_T","notes":"used 7 color indices; used ground-based radiometric albedo","value":"CU"}],"signature":{"source":"NASA/JPL Small-Body Database (SBDB) API","version":"1.3"}}