+ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02671703452255928 5.2264e-08   a 2.9644022668097 2.2194e-08 au q 2.885202229108592 1.6354e-07 au i 8.29071333011666 5.0742e-06 deg node 273.8632461093832 3.4035e-05 deg peri 17.87751326494596 0.00011502 deg M 6.745549414576368 0.00010661 deg tp 2458965.568361330238 (2020-Apr-26.06836133) 0.00055224 TDB period 1864.249914757156 5.10 2.0936e-05 5.732e-08 d yr n .1931071564763327 2.1686e-09 deg/d Q 3.043602304510808 2.2787e-08 au   Orbit Determination Parameters    # obs. used (total)      504      data-arc span      7353 days (20.13 yr)      first obs. used      2000-09-01      last obs. used      2020-10-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51927      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 14:30:39   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 17 CATAB v2.0f-lin.ifort 2020-Nov-12 14:30:40 2020-Nov-12 14:30 Alternate Designations  2000 RM39 = 2001 YV32  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 21:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin