+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   145452 (2005 RN43) Classification: TransNeptunian Object          SPK-ID: 2145452 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02887082164963415 7.9068e-06   a 41.8070977174003 0.0004945 au q 40.6000924555124 0.00015631 au i 19.24538699069823 3.0351e-05 deg node 187.0109666493539 4.8879e-05 deg peri 165.8720203176898 0.011156 deg M 353.6876479034575 0.010605 deg tp 2460931.759504904803 (2025-Sep-13.25950490) 2.8831 TDB period 98735.52872741487 270.32 1.7518 0.004796 d yr n .003646103936850064 6.469e-08 deg/d Q 43.01410297928818 0.00050878 au   Orbit Determination Parameters    # obs. used (total)      790      data-arc span      24274 days (66.46 yr)      first obs. used      1954-06-02      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .31254      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 10:27:26   Additional Information  Earth MOID = 39.5969 au   Jupiter MOID = 35.6586 au   T_jup = 5.475  [ 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 3.75   n/a E2021B55   rotation period rot_per 6.95 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: [Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.] 145452 (2005 RN43)          Discovered 2005-Sep-10 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-Apr-10 23:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin