+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   145453 (2005 RR43) Classification: TransNeptunian Object          SPK-ID: 2145453 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO186683 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1413934 n/a   a 43.4633961 n/a AU q 37.3179587 n/a AU i 28.45609 n/a deg node 85.90396 n/a deg peri 281.13436 n/a deg M 38.45629 n/a deg tp 2445220.3059122 (1982-Sep-07.80591220) n/a JED period 104660.8986883 286.55 n/a n/a d yr n 0.00343968 n/a deg/d Q 49.6088335 n/a AU   Orbit Determination Parameters    # obs. used (total)      209      first obs. used      1976-??-??      last obs. used      2008-09-20      # oppositions      8      planetary ephem.      DE403      condition code      1      fit RMS      0.20      data source      MPC:mpu      producer      MPCALI   Additional Information  T_jup = 5.151   MPC Cubewano   MPC critical-list numbered object  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 4.0 mag n/a MPO186683   rotation period rot_per 7.87 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) 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.] 145453 (2005 RR43)          Discovered 2005-Sep-09 by Becker, A. C., Puckett, A. W., Kubica, J. at Apache Point (705) Reference: 20061205/Numbers.arc Last Updated: 2006-12-13 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 03:33 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin