+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14802 (1981 DJ2) Classification: Main-belt Asteroid          SPK-ID: 2014802 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1452485122369953 3.809e-08   a 2.782599237872396 9.9033e-09 au q 2.378430838419634 1.062e-07 au i 14.76913909681419 4.0629e-06 deg node 213.5652563433712 1.1453e-05 deg peri 151.3513273437448 1.7603e-05 deg M 22.04986253265912 1.1209e-05 deg tp 2459096.656861599962 (2020-Sep-04.15686160) 5.2809e-05 TDB period 1695.40874772544 4.64 9.051e-06 2.478e-08 d yr n .2123381753709694 1.1336e-09 deg/d Q 3.186767637325159 1.1342e-08 au   Orbit Determination Parameters    # obs. used (total)      1815      data-arc span      14641 days (40.08 yr)      first obs. used      1981-02-04      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46682      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:39:44   Additional Information  Earth MOID = 1.38733 au   Jupiter MOID = 2.31653 au   T_jup = 3.269  [ 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 13.87   n/a E2020-QM5   diameter diameter 6.591 km 1.587 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.081   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   14802 (1981 DJ2)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring Reference: 20000523/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1981 DJ2 = 1997 TE10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 03:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin