+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   145451 (2005 RM43) Classification: TransNeptunian Object          SPK-ID: 2145451 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6120501791493984 1.918e-05   a 90.36836293819655 0.004823 au q 35.0583902124355 0.00014276 au i 28.80342164011731 3.1796e-05 deg node 84.61240877435529 2.4121e-05 deg peri 317.9973229034875 0.00042249 deg M 6.811190966415752 0.00058769 deg tp 2453263.820475965626 (2004-Sep-15.32047597) 0.068439 TDB period 313778.4036874588 859.08 25.119 0.06877 d yr n .001147306493274727 9.1847e-08 deg/d Q 145.6783356639576 0.0077748 au   Orbit Determination Parameters    # obs. used (total)      486      data-arc span      15777 days (43.20 yr)      first obs. used      1976-11-17      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      1      norm. resid. RMS      .35576      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 14:36:02   Additional Information  Earth MOID = 34.1213 au   Jupiter MOID = 30.3193 au   T_jup = 5.833  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 4.4   n/a MPO432911   rotation period rot_per 6.71 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.] 145451 (2005 RM43)          Discovered 2005-Sep-09 by Becker, A. C., Puckett, A. W., Kubica, J. at Apache Point Reference: 20061205/Numbers.arc Last Updated: 2006-12-13 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2021-Mar-08 00:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin