{"signature":{"version":"1.3","source":"NASA/JPL Small-Body Database (SBDB) API"},"phys_par":[{"sigma":null,"title":"absolute magnitude","notes":"IRAS observations used: 13","units":null,"desc":"absolute magnitude (magnitude at 1 au from Sun and observer)","name":"H","ref":"MPO964272","value":"8.06"},{"name":"G","ref":"PDS3 (MPC 17258)","value":"0.22","sigma":null,"title":"magnitude slope","units":null,"desc":"magnitude slope parameter used in the standard asteroid H/G magnitude law","notes":"Fit"},{"ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)","name":"diameter","value":"159.331","sigma":"0.490","title":"diameter","units":"km","desc":"effective body diameter","notes":null},{"name":"rot_per","ref":"LCDB (Rev. 2023-October); Warner et al., 2009","value":"6.214","title":"rotation period","sigma":null,"units":"h","desc":"body rotation period (synodic)","notes":"REFERENCE LIST:[Harris, A.W.; Young, J.; Scaltriti, F.; Zappala, V. (1984) Icarus 57, 251-258.], [Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, N.M.; Krugly, Yu.N.; et al. (2005) Abstr. IAU Symp. 229, p. 133.], [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, M.; Krugly, Y.N.; et al. (2008) Icarus 196, 601-611.], [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Carbognani, A.; Cellino, A.; Caminiti, S. (2019) Planet. Space Sci. 169, 15-34.], [Pilcher, F. (2019) Minor Planet Bull. 46, 445-448.], [Durech, J.; Tonry, J.; Erasmus, N.; Denneau, L.; et al. (2020) Astron. Astrophys. 643, A59.]"},{"value":"0.051","name":"albedo","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)","units":null,"desc":"geometric albedo","notes":null,"title":"geometric albedo","sigma":"0.008"},{"value":"0.676","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","name":"BV","notes":"#obs=6; phase (min.=4.98, mean=8.90, max.=14.48) deg.","units":null,"desc":"color index B-V magnitude difference","sigma":"0.033","title":"B-V"},{"sigma":"0.034","title":"U-B","units":null,"desc":"color index U-B magnitude difference","notes":"#obs=6; phase (min.=4.98, mean=8.90, max.=14.48) deg.","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","name":"UB","value":"0.293"},{"value":"C","ref":"EAR-A-5-DDR-TAXONOMY-V4.0","name":"spec_T","desc":"Tholen spectral taxonomic classification","units":null,"notes":"used 7 color indices; used ground-based radiometric albedo","sigma":null,"title":"Tholen spectral type"},{"sigma":null,"title":"SMASSII spectral type","notes":"based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)","desc":"SMASSII spectral taxonomic classification","units":null,"ref":"EAR-A-5-DDR-TAXONOMY-V4.0","name":"spec_B","value":"C"}],"orbit":{"cov_epoch":"2457411.5","not_valid_before":null,"soln_date":"2026-06-05 03:36:28","orbit_id":"152","n_obs_used":7813,"last_obs":"2026-02-23","elements":[{"value":"0.173","name":"e","label":"e","units":null,"sigma":"2.1e-09","title":"eccentricity"},{"sigma":"2.7e-09","title":"semi-major axis","label":"a","units":"au","name":"a","value":"2.77"},{"title":"perihelion distance","sigma":"5e-09","label":"q","units":"au","name":"q","value":"2.29"},{"units":"deg","label":"i","title":"inclination; angle with respect to x-y ecliptic plane","sigma":"1.8e-07","value":"10.3","name":"i"},{"name":"om","value":"196","sigma":"8.3e-07","title":"longitude of the ascending node","label":"node","units":"deg"},{"name":"w","value":"155","title":"argument of perihelion","sigma":"1.1e-06","units":"deg","label":"peri"},{"units":"deg","label":"M","title":"mean anomaly","sigma":"1.6e-06","value":"61.5","name":"ma"},{"value":"2460912.595","name":"tp","units":"TDB","label":"tp","sigma":"7.2e-06","title":"time of perihelion passage"},{"sigma":"2.5e-06","title":"sidereal orbital period","units":"d","label":"period","name":"per","value":"1680"},{"sigma":"3.1e-10","title":"mean motion","units":"deg/d","label":"n","name":"n","value":"0.214"},{"name":"ad","value":"3.25","title":"aphelion distance","sigma":"3.2e-09","label":"Q","units":"au"}],"moid_jup":"2.22","producer":"Otto Matic","sb_used":"SB441-N16","epoch":"2461200.5","n_del_obs_used":null,"moid":"1.29","rms":"0.32","model_pars":[],"comment":null,"equinox":"J2000","source":"JPL","data_arc":"46342","n_dop_obs_used":null,"t_jup":"3.292","pe_used":"DE441","condition_code":"0","not_valid_after":null,"two_body":null,"first_obs":"1899-04-08"},"object":{"neo":false,"orbit_id":"152","prefix":null,"spkid":"20000444","kind":"an","shortname":"444 Gyptis","fullname":"444 Gyptis (A899 FA)","orbit_class":{"code":"MBA","name":"Main-belt Asteroid"},"pha":false,"des":"444"}}
