+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   109210 (2001 QJ83) Classification: Main-belt Asteroid          SPK-ID: 2109210 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1656982284791698 4.6899e-08   a 2.736478183827368 1.3406e-08 au q 2.283048596495277 1.2785e-07 au i 8.169329898566557 5.603e-06 deg node 319.2171714157337 3.0297e-05 deg peri 42.91954612381289 3.3956e-05 deg M 57.25890379684963 1.3324e-05 deg tp 2458737.517444866379 (2019-Sep-11.01744487) 6.1209e-05 TDB period 1653.432279877361 4.53 1.215e-05 3.326e-08 d yr n .2177289051274008 1.6e-09 deg/d Q 3.189907771159458 1.5627e-08 au   Orbit Determination Parameters    # obs. used (total)      811      data-arc span      7029 days (19.24 yr)      first obs. used      2001-07-29      last obs. used      2020-10-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53158      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:13:24   Additional Information  Earth MOID = 1.28726 au   Jupiter MOID = 2.29095 au   T_jup = 3.317  [ 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 14.8   n/a MPO502754   diameter diameter 2.509 km 0.375 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.487   0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   109210 (2001 QJ83)          Discovered 2001-Aug-17 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1932-Oct-01 02:59 00:06 Amphi 0.0434262124441894 0.0434184436717732 0.0434339858736976 2.77288084046073 2.77288079271991 2426981.624599584 6.4381897811449 818.684125130679 73.642833489791 -62.2312693037106 78060.3679261504 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 19:13:26 2020-Nov-12 19:13 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-25 23:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin