+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134536 (1999 RD77) Classification: Main-belt Asteroid          SPK-ID: 2134536 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ 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 .1309268424065367 3.9196e-08   a 2.329183365722099 1.0366e-08 au q 2.024230742262275 9.0598e-08 au i 7.474934052486662 4.0778e-06 deg node 144.0917279632734 3.2542e-05 deg peri 212.7257560645613 3.572e-05 deg M 285.7230444393739 1.4854e-05 deg tp 2459268.389406823593 (2021-Feb-22.88940682) 5.3948e-05 TDB period 1298.386366654154 3.55 8.6679e-06 2.373e-08 d yr n .2772672366606046 1.851e-09 deg/d Q 2.634135989181923 1.1723e-08 au   Orbit Determination Parameters    # obs. used (total)      615      data-arc span      7628 days (20.88 yr)      first obs. used      1999-09-04      last obs. used      2020-07-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54879      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 10:56:47   Additional Information  Earth MOID = 1.02335 au   Jupiter MOID = 2.79296 au   T_jup = 3.549  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.3   n/a MPO436657   134536 (1999 RD77)          Discovered 1999-Sep-07 by LINEAR at Socorro Reference: 20060907/Numbers.arc Last Updated: 2006-09-10 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-30 17:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin