+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   44600 (1999 RU10) Classification: Inner Main-belt Asteroid          SPK-ID: 2044600 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05767646852777768 2.1106e-08   a 1.922431131057874 5.877e-09 au q 1.811552092430595 4.1143e-08 au i 20.58861590199313 1.1895e-06 deg node 332.0159275726562 2.6557e-06 deg peri 202.3086159161709 2.1082e-05 deg M 152.0028100915364 2.3752e-05 deg tp 2458789.422478931414 (2019-Nov-01.92247893) 6.3685e-05 TDB period 973.5866560333478 2.67 4.4644e-06 1.222e-08 d yr n .3697667770701955 1.6956e-09 deg/d Q 2.033310169685154 6.2159e-09 au   Orbit Determination Parameters    # obs. used (total)      1448      data-arc span      10709 days (29.32 yr)      first obs. used      1991-07-17      last obs. used      2020-11-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43525      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 09:31:31   Additional Information  Earth MOID = .826204 au   Jupiter MOID = 2.96579 au   T_jup = 3.843  [ 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 14.72   n/a E2021B10   diameter diameter 1.888 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 6.211 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2011) Minor Planet Bull. 38, 82-86.] [Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] geometric albedo albedo 0.945   0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   44600 (1999 RU10)          Discovered 1999-Sep-07 by LINEAR at Socorro Reference: 20020822/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 RU10 = 2000 YT34  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-23 00:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin