{"object":{"shortname":"663 Gerlinde","orbit_id":"117","des":"663","spkid":"20000663","orbit_class":{"code":"MBA","name":"Main-belt Asteroid"},"neo":false,"kind":"an","prefix":null,"pha":false,"fullname":"663 Gerlinde (A908 MB)"},"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"phys_par":[{"units":null,"sigma":null,"title":"absolute magnitude","ref":"MPO980531","value":"9.15","notes":"IRAS observations used: 9","desc":"absolute magnitude (magnitude at 1 au from Sun and observer)","name":"H"},{"name":"diameter","desc":"effective body diameter","notes":null,"value":"107.795","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)","title":"diameter","sigma":"1.571","units":"km"},{"value":"10.251","notes":"REFERENCE LIST:[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Warner, B.D. (2006) Minor Planet Bull. 33, 35-39.], [Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.], [Durech, J.; Tonry, J.; Erasmus, N.; Denneau, L.; et al. (2020) Astron. Astrophys. 643, A59.], [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2020) Ap. J. Supl. Ser. 247, id.26.], [Behrend, R. (2021) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]","sigma":null,"units":"h","title":"rotation period","ref":"LCDB (Rev. 2023-October); Warner et al., 2009","desc":"body rotation period (synodic)","name":"rot_per"},{"ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)","title":"geometric albedo","units":null,"sigma":"0.004","notes":null,"value":"0.031","name":"albedo","desc":"geometric albedo"},{"units":null,"sigma":"0.023","title":"B-V","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","value":"0.677","notes":"#obs=3; phase (min.=5.37, mean=10.17, max.=13.18) deg.","desc":"color index B-V magnitude difference","name":"BV"},{"desc":"color index U-B magnitude difference","name":"UB","value":"0.308","notes":"#obs=3; phase (min.=5.37, mean=10.17, max.=13.18) deg.","sigma":"0.055","units":null,"ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","title":"U-B"},{"sigma":null,"units":null,"ref":"EAR-A-5-DDR-TAXONOMY-V4.0","title":"Tholen spectral type","value":"X","notes":"used 7 color indices","desc":"Tholen spectral taxonomic classification","name":"spec_T"}],"orbit":{"not_valid_after":null,"last_obs":"2026-04-14","rms":"0.33","moid_jup":"1.59","equinox":"J2000","first_obs":"1908-06-24","n_obs_used":6684,"source":"JPL","t_jup":"3.142","sb_used":"SB441-N16","n_del_obs_used":null,"condition_code":"0","pe_used":"DE441","orbit_id":"117","cov_epoch":"2457491.5","comment":null,"two_body":null,"n_dop_obs_used":null,"producer":"Otto Matic","not_valid_before":null,"data_arc":"43028","moid":"1.64","epoch":"2461200.5","model_pars":[],"soln_date":"2026-06-05 03:53:50","elements":[{"value":"0.148","title":"eccentricity","sigma":"1.9e-09","units":null,"name":"e","label":"e"},{"name":"a","label":"a","title":"semi-major axis","sigma":"3.3e-09","units":"au","value":"3.06"},{"label":"q","name":"q","value":"2.61","title":"perihelion distance","sigma":"8.5e-09","units":"au"},{"value":"17.9","title":"inclination; angle with respect to x-y ecliptic plane","sigma":"6.8e-08","units":"deg","name":"i","label":"i"},{"value":"232","title":"longitude of the ascending node","units":"deg","sigma":"2e-07","label":"node","name":"om"},{"name":"w","label":"peri","value":"315","title":"argument of perihelion","sigma":"4.4e-07","units":"deg"},{"name":"ma","label":"M","value":"72.6","title":"mean anomaly","units":"deg","sigma":"1.1e-06"},{"label":"tp","name":"tp","value":"2460805.413","units":"TDB","sigma":"5.5e-06","title":"time of perihelion passage"},{"value":"1960","units":"d","sigma":"3.2e-06","title":"sidereal orbital period","name":"per","label":"period"},{"label":"n","name":"n","value":"0.184","title":"mean motion","units":"deg/d","sigma":"3e-10"},{"sigma":"3.8e-09","units":"au","title":"aphelion distance","value":"3.52","name":"ad","label":"Q"}]}}