+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .189207521930934 3.9756e-08   a 2.293040909982554 5.3773e-09 au q 1.859180321718501 8.9912e-08 au i 7.138646709947857 4.4498e-06 deg node 345.88641936 2.1876e-05 deg peri 328.9582135353629 2.4017e-05 deg M 59.46366785007351 1.0492e-05 deg tp 2458991.009021849521 (2020-May-21.50902185) 3.6766e-05 TDB period 1268.282883664721 3.47 4.4613e-06 1.221e-08 d yr n .2838483469553535 9.9847e-10 deg/d Q 2.726901498246607 6.3948e-09 au   Orbit Determination Parameters    # obs. used (total)      1989      data-arc span      16038 days (43.91 yr)      first obs. used      1977-02-19      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46919      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:48:27   Additional Information  Earth MOID = .848114 au   Jupiter MOID = 2.57897 au   T_jup = 3.563  [ 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 14.71   n/a E2021B10   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 ] 2021-Apr-10 15:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin