{"object":{"neo":false,"des":"141","prefix":null,"spkid":"20000141","shortname":"141 Lumen","pha":false,"orbit_id":"113","kind":"an","fullname":"141 Lumen (A875 AA)","orbit_class":{"code":"MBA","name":"Main-belt Asteroid"}},"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"orbit":{"equinox":"J2000","epoch":"2461200.5","data_arc":"54222","n_dop_obs_used":null,"n_del_obs_used":null,"elements":[{"title":"eccentricity","value":"0.213","name":"e","sigma":"2.5e-09","units":null,"label":"e"},{"name":"a","value":"2.67","title":"semi-major axis","sigma":"2.4e-09","units":"au","label":"a"},{"title":"perihelion distance","name":"q","value":"2.1","sigma":"6.1e-09","units":"au","label":"q"},{"value":"11.9","name":"i","title":"inclination; angle with respect to x-y ecliptic plane","sigma":"1.2e-07","units":"deg","label":"i"},{"label":"node","units":"deg","sigma":"6.6e-07","name":"om","value":"318","title":"longitude of the ascending node"},{"units":"deg","label":"peri","title":"argument of perihelion","name":"w","value":"57.9","sigma":"7.9e-07"},{"units":"deg","label":"M","value":"27.9","name":"ma","title":"mean anomaly","sigma":"1.3e-06"},{"units":"TDB","label":"tp","title":"time of perihelion passage","name":"tp","value":"2461077.394","sigma":"5.4e-06"},{"label":"period","units":"d","sigma":"2.2e-06","name":"per","value":"1590","title":"sidereal orbital period"},{"units":"deg/d","label":"n","title":"mean motion","value":"0.226","name":"n","sigma":"3.1e-10"},{"sigma":"2.9e-09","name":"ad","value":"3.23","title":"aphelion distance","label":"Q","units":"au"}],"condition_code":"0","soln_date":"2026-06-05 03:12:00","moid_jup":"2.34","comment":null,"t_jup":"3.320","not_valid_before":null,"model_pars":[],"rms":"0.32","sb_used":"SB441-N16","cov_epoch":"2458055.5","last_obs":"2026-02-01","not_valid_after":null,"source":"JPL","producer":"Otto Matic","n_obs_used":4920,"first_obs":"1877-08-19","two_body":null,"orbit_id":"113","moid":"1.12","pe_used":"DE441"},"phys_par":[{"units":null,"ref":"E2025N01","title":"absolute magnitude","value":"8.38","desc":"absolute magnitude (magnitude at 1 au from Sun and observer)","sigma":null,"notes":null,"name":"H"},{"name":"diameter","notes":null,"sigma":"1.361","desc":"effective body diameter","value":"117.916","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)","title":"diameter","units":"km"},{"units":"h","value":"19.87","title":"rotation period","ref":"LCDB (Rev. 2023-October); Warner et al., 2009","desc":"body rotation period (synodic)","sigma":null,"notes":"REFERENCE LIST:[Holliday, B. (1996) Minor Planet Bull. 23, 17.], [Angeli, C.A.; Lazzaro, D.; Florczak, A.; Betzler, A.S.; Carvano, J.M. (1999) Planet. Space Sci. 47, 699-714.], [Koff, R.A. (2006) Minor Planet Bull. 33, 31-33.], [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2020) Ap. J. Supl. Ser. 247, id.26.]","name":"rot_per"},{"title":"geometric albedo","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)","value":"0.067","units":null,"notes":null,"sigma":"0.010","name":"albedo","desc":"geometric albedo"},{"desc":"Tholen spectral taxonomic classification","notes":"used 2 color indices; used ground-based radiometric albedo","sigma":null,"name":"spec_T","units":null,"value":"CPF","ref":"EAR-A-5-DDR-TAXONOMY-V4.0","title":"Tholen spectral type"},{"desc":"SMASSII spectral taxonomic classification","name":"spec_B","notes":"based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)","sigma":null,"units":null,"value":"Ch","ref":"EAR-A-5-DDR-TAXONOMY-V4.0","title":"SMASSII spectral type"}]}