+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103772 (2000 DD2) Classification: Main-belt Asteroid          SPK-ID: 2103772 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1306448989586185 3.2687e-08   a 2.315167947952129 9.0358e-09 au q 2.012703065319692 7.6582e-08 au i 4.319614552739606 7.3473e-06 deg node 172.6543686017594 4.4437e-05 deg peri 257.8988904799577 5.3541e-05 deg M 56.51717991025624 3.1102e-05 deg tp 2458998.500561911218 (2020-May-29.00056191) 0.00011092 TDB period 1286.684824462817 3.52 7.5327e-06 2.062e-08 d yr n .2797887976570314 1.638e-09 deg/d Q 2.617632830584567 1.0216e-08 au   Orbit Determination Parameters    # obs. used (total)      409      data-arc span      10697 days (29.29 yr)      first obs. used      1991-10-05      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60746      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:35:45   Additional Information  Earth MOID = 1.03169 au   Jupiter MOID = 2.63953 au   T_jup = 3.566  [ 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 16.8   n/a MPO493585   diameter diameter 2.499 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.059   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   103772 (2000 DD2)          Discovered 2000-Feb-26 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2000 DD2 = 2003 BW87  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-03 19:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin