+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11424 (1999 LZ24) Classification: Main-belt Asteroid          SPK-ID: 2011424 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1615544982705522 4.1853e-08   a 2.413294688449122 8.7463e-09 au q 2.023416075877736 1.0014e-07 au i 12.92869602431593 4.3925e-06 deg node 66.9408625635696 1.5662e-05 deg peri 334.512470065749 1.9721e-05 deg M 86.76294467802231 1.1551e-05 deg tp 2458670.475831958725 (2019-Jul-05.97583196) 4.3719e-05 TDB period 1369.348411764476 3.75 7.4442e-06 2.038e-08 d yr n .2628987603937273 1.4292e-09 deg/d Q 2.803173301020509 1.0159e-08 au   Orbit Determination Parameters    # obs. used (total)      2415      data-arc span      23722 days (64.95 yr)      first obs. used      1955-12-06      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .3661      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 20:16:16   Additional Information  Earth MOID = 1.04039 au   Jupiter MOID = 2.59359 au   T_jup = 3.466  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.4   n/a MPO502257   diameter diameter 12.889 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 2.925 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2001) Minor Planet Bull. 28, 30-32.] [Warner, B.D. (2011) Minor Planet Bull. 38, 21-23.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.] geometric albedo albedo 0.154   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   11424 (1999 LZ24)          Discovered 1999-Jun-09 by LINEAR at Socorro Reference: 19990831/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 LZ24 = 1955 XJ = 1970 YA = 1981 RM1 = 1991 JH6 = 1998 GM2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-15 19:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin