+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   109599 (2001 QF282) Classification: Main-belt Asteroid          SPK-ID: 2109599 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03295357133790427 5.8651e-08   a 2.902792345367384 2.4805e-08 au q 2.807134970735198 1.6687e-07 au i 15.53697095307834 6.3262e-06 deg node 287.0488504750024 1.8079e-05 deg peri 207.3504304816909 7.303e-05 deg M 172.6581263283212 7.0651e-05 deg tp 2458134.123021669114 (2018-Jan-15.62302167) 0.00035417 TDB period 1806.435172393959 4.95 2.3155e-05 6.339e-08 d yr n .1992875280007496 2.5545e-09 deg/d Q 2.998449719999571 2.5623e-08 au   Orbit Determination Parameters    # obs. used (total)      655      data-arc span      7866 days (21.54 yr)      first obs. used      1997-11-24      last obs. used      2019-06-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56653      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 03:28:52   Additional Information  Earth MOID = 1.82872 au   Jupiter MOID = 2.1332 au   T_jup = 3.231  [ 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 14.5   n/a MPO348163   diameter diameter 7.891 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.049   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   109599 (2001 QF282)          Discovered 2001-Aug-19 by LONEOS at Anderson Mesa Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-10 07:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin