+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5112 Kusaji (1987 SM13) Classification: Main-belt Asteroid          SPK-ID: 2005112 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1298755946852112 4.3589e-08   a 2.174791023332362 5.3495e-09 au q 1.892338745861012 9.5805e-08 au i 5.763930747451222 4.2988e-06 deg node 62.68693089719378 3.2735e-05 deg peri 342.035692999971 3.4966e-05 deg M 39.27316950601436 1.1125e-05 deg tp 2458872.703730728353 (2020-Jan-24.20373073) 3.6205e-05 TDB period 1171.452610432865 3.21 4.3223e-06 1.183e-08 d yr n .307310766815378 1.1339e-09 deg/d Q 2.457243300803711 6.0443e-09 au   Orbit Determination Parameters    # obs. used (total)      2242      data-arc span      17916 days (49.05 yr)      first obs. used      1971-10-11      last obs. used      2020-10-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42236      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:46:05   Additional Information  Earth MOID = .902736 au   Jupiter MOID = 2.89817 au   T_jup = 3.668  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.0   n/a MPO502202   diameter diameter 3.419 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 2.7995 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Chiorny, V.; Pravec, P.; Romeuf, D.; Montaighut, R.; et al. (2016) CBET 4336.] geometric albedo albedo 0.500   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   5112 Kusaji (1987 SM13)          Discovered 1987-Sep-23 by Ueda and Kaneda at Kushiro Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1987 SM13 = 1971 TK1 = 1987 SL29 = 1990 OV1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-27 07:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin