+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   10083 (1990 QE2) Classification: Main-belt Asteroid          SPK-ID: 2010083 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1599368785299516 2.4387e-08   a 2.229763293520465 6.1716e-09 au q 1.873141912494138 5.3544e-08 au i 5.017377265556914 4.0632e-06 deg node 335.1690552253613 3.4436e-05 deg peri 311.1232201268319 3.7787e-05 deg M 20.9115592138705 1.5319e-05 deg tp 2458929.856780299291 (2020-Mar-21.35678030) 5.18e-05 TDB period 1216.148391048079 3.33 5.0491e-06 1.382e-08 d yr n .2960165080593095 1.229e-09 deg/d Q 2.586384674546792 7.1586e-09 au   Orbit Determination Parameters    # obs. used (total)      2466      data-arc span      14677 days (40.18 yr)      first obs. used      1980-09-08      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47191      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:41:11   Additional Information  Earth MOID = .861467 au   Jupiter MOID = 2.5808 au   T_jup = 3.621  [ 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 14.1   n/a MPO384846   diameter diameter 3.231 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.294   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   10083 (1990 QE2)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar Reference: 19990302/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1990 QE2 = 1980 RU4 = 1996 BS17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 17:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin