{"phys_par":[{"name":"H","desc":"absolute magnitude (magnitude at 1 au from Sun and observer)","notes":"IRAS observations used: 19","value":"8.75","title":"absolute magnitude","ref":"E2026-EA1","sigma":null,"units":null},{"notes":null,"value":"132.992","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)","title":"diameter","units":"km","sigma":"1.033","name":"diameter","desc":"effective body diameter"},{"notes":"REFERENCE LIST:[Vesely, C.D.; Taylor, R.C. (1985) Icarus 64, 37-52.], [Magnusson, P.; Lagerkvist, C.-I. (1991) Astron. Astrophys. Suppl. Ser. 87, 269-275.], [Lagerkvist, C.-I.; Erikson, A.; Debehogne, H.; Festin, L.; et al. (1995) Astron. Astrophys. Suppl. Ser. 113, 115-129.], [Riccioli, D.; Blanco, C.; Cigna, M. (2001) Planet. Space Sci. 49, 657-671.], [Uzpen, B.; Kipp, S. (2003) Minor Planet Bull. 30, 59-61.], [Pilcher, F. (2008) Minor Planet Bull. 35, 135-138.], [Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.], [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.], [Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.], [Mieczkowska, I.; Marciniak, A.; Hirsch, R.; Kaminski, K.; et al. (2021) Minor Planet Bull. 48, 352-357.]","value":"12.15","title":"rotation period","ref":"LCDB (Rev. 2023-October); Warner et al., 2009","sigma":null,"units":"h","name":"rot_per","desc":"body rotation period (synodic)"},{"desc":"geometric albedo","name":"albedo","value":"0.023","notes":null,"units":null,"sigma":"0.006","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)","title":"geometric albedo"},{"name":"BV","desc":"color index B-V magnitude difference","notes":"#obs=5; phase (min.=2.42, mean=12.73, max.=21.25) deg.","value":"0.707","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","title":"B-V","units":null,"sigma":"0.014"},{"desc":"color index U-B magnitude difference","name":"UB","units":null,"sigma":"0.038","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","title":"U-B","value":"0.357","notes":"#obs=5; phase (min.=2.42, mean=12.73, max.=21.25) deg."},{"ref":"EAR-A-5-DDR-TAXONOMY-V4.0","title":"Tholen spectral type","sigma":null,"units":null,"notes":"used 7 color indices; used ground-based radiometric albedo","value":"C","name":"spec_T","desc":"Tholen spectral taxonomic classification"},{"desc":"SMASSII spectral taxonomic classification","name":"spec_B","units":null,"sigma":null,"ref":"EAR-A-5-DDR-TAXONOMY-V4.0","title":"SMASSII spectral type","value":"Ch","notes":"based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)"}],"orbit":{"elements":[{"label":"e","name":"e","title":"eccentricity","sigma":"1.6e-09","units":null,"value":"0.106"},{"label":"a","name":"a","value":"2.69","units":"au","sigma":"2.1e-09","title":"semi-major axis"},{"units":"au","sigma":"3.5e-09","title":"perihelion distance","value":"2.4","label":"q","name":"q"},{"sigma":"1e-07","units":"deg","title":"inclination; angle with respect to x-y ecliptic plane","value":"5.5","name":"i","label":"i"},{"value":"184","title":"longitude of the ascending node","units":"deg","sigma":"1.5e-06","label":"node","name":"om"},{"name":"w","label":"peri","value":"329","sigma":"1.7e-06","units":"deg","title":"argument of perihelion"},{"name":"ma","label":"M","value":"350","title":"mean anomaly","units":"deg","sigma":"1.1e-06"},{"name":"tp","label":"tp","value":"2461244.796","sigma":"5e-06","units":"TDB","title":"time of perihelion passage"},{"name":"per","label":"period","title":"sidereal orbital period","units":"d","sigma":"1.9e-06","value":"1610"},{"name":"n","label":"n","title":"mean motion","units":"deg/d","sigma":"2.6e-10","value":"0.224"},{"label":"Q","name":"ad","title":"aphelion distance","units":"au","sigma":"2.3e-09","value":"2.97"}],"soln_date":"2026-06-05 03:03:26","epoch":"2461200.5","model_pars":[],"moid":"1.41","data_arc":"59148","not_valid_before":null,"producer":"Otto Matic","n_dop_obs_used":null,"two_body":null,"comment":null,"cov_epoch":"2457795.5","orbit_id":"126","pe_used":"DE441","n_del_obs_used":null,"condition_code":"0","sb_used":"SB441-N16","t_jup":"3.359","source":"JPL","n_obs_used":11509,"first_obs":"1864-04-28","equinox":"J2000","rms":"0.29","moid_jup":"2.03","last_obs":"2026-04-07","not_valid_after":null},"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"object":{"orbit_id":"126","shortname":"34 Circe","des":"34","orbit_class":{"code":"MBA","name":"Main-belt Asteroid"},"spkid":"20000034","neo":false,"kind":"an","prefix":null,"pha":false,"fullname":"34 Circe (A855 GA)"}}