+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20567 McQuarrie (1999 RS129) Classification: Main-belt Asteroid          SPK-ID: 2020567 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1893955443591768 4.4076e-08   a 2.29350556744191 9.2441e-09 au q 1.859125832005446 1.0264e-07 au i 7.138185790852155 5.091e-06 deg node 345.887005954194 2.7664e-05 deg peri 328.9640178084558 2.9617e-05 deg M 2.68591899702362 1.3556e-05 deg tp 2458991.034609514222 (2020-May-21.53460951) 4.7737e-05 TDB period 1268.668406849295 3.47 7.6701e-06 2.1e-08 d yr n .2837620910684223 1.7156e-09 deg/d Q 2.727885302878373 1.0995e-08 au   Orbit Determination Parameters    # obs. used (total)      1474      data-arc span      15817 days (43.30 yr)      first obs. used      1977-02-19      last obs. used      2020-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51182      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 18:43:16   Additional Information  Earth MOID = .850026 au   Jupiter MOID = 2.57833 au   T_jup = 3.562  [ 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 14.7   n/a MPO474036   20567 McQuarrie           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Kerry Ann McQuarrie mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the Chapin School, Princeton, New Jersey. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20041028/MPCPages.arc Last Updated: 2004-10-29 [ show close-approach data ] Alternate Designations  1999 RS129 = 1977 DP5 = 1992 PU6 = 1998 FZ16  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-10 03:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin