+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1616834254957772 4.1727e-08   a 2.412924910394784 8.5421e-09 au q 2.022794945418064 9.9881e-08 au i 12.92897368620937 4.2528e-06 deg node 66.93490024310226 1.5251e-05 deg peri 334.4732086465532 1.8869e-05 deg M 139.3886282110625 1.1225e-05 deg tp 2458670.422975630496 (2019-Jul-05.92297563) 4.2126e-05 TDB period 1369.033695374847 3.75 7.2699e-06 1.99e-08 d yr n .2629591961222185 1.3964e-09 deg/d Q 2.803054875371505 9.9232e-09 au   Orbit Determination Parameters    # obs. used (total)      2590      data-arc span      23849 days (65.30 yr)      first obs. used      1955-12-06      last obs. used      2021-03-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .36161      source      ORB      producer      Otto Matic      solution date      2021-May-04 00:57:58   Additional Information  Earth MOID = 1.03892 au   Jupiter MOID = 2.59479 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 12.44   n/a MPCxxxxx   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-May-16 10:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin