+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146125 (2000 RM39) Classification: Main-belt Asteroid          SPK-ID: 2146125 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02671704233224391 5.3691e-08   a 2.96440226112178 2.3868e-08 au q 2.88520220042159 1.6961e-07 au i 8.290713180738702 5.3811e-06 deg node 273.863247338896 3.585e-05 deg peri 17.87750208102432 0.00011667 deg M 6.745560943723371 0.00010801 deg tp 2458965.568301727411 (2020-Apr-26.06830173) 0.00055948 TDB period 1864.249909391637 5.10 2.2515e-05 6.164e-08 d yr n .1931071570321166 2.3322e-09 deg/d Q 3.04360232182197 2.4506e-08 au   Orbit Determination Parameters    # obs. used (total)      460      data-arc span      7272 days (19.91 yr)      first obs. used      2000-09-01      last obs. used      2020-07-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53126      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 11:31:15   Additional Information  Earth MOID = 1.86988 au   Jupiter MOID = 2.05019 au   T_jup = 3.249  [ 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 15.3   n/a MPO436733   diameter diameter 3.604 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.136   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   146125 (2000 RM39)          Discovered 2000-Sep-01 by LINEAR at Socorro Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1951-Jan-28 05:42 00:10 Thisb 0.0246735604295212 0.0246564074400498 0.0246907286784545 2.43837001430239 2.43836990097279 2433674.737247205 9.84092138294859 1295.48911119102 104.122173936889 -48.9330567207972 26751.9406645485 T 16 CATAB v2.0f-lin.ifort 2020-Aug-25 11:31:18 2020-Aug-25 11:31 Alternate Designations  2000 RM39 = 2001 YV32  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-27 14:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin