+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   437995 (2003 UR51) Classification: Main-belt Asteroid          SPK-ID: 2437995 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1735832854233352 7.4215e-08   a 2.603066544653154 2.542e-08 au q 2.151217701656691 1.955e-07 au i 13.39812754811045 8.6934e-06 deg node 322.498403091098 2.7023e-05 deg peri 347.7486379996687 3.3467e-05 deg M 42.9079544040175 2.1923e-05 deg tp 2458817.664029082863 (2019-Nov-30.16402908) 9.1768e-05 TDB period 1534.003436994577 4.20 2.247e-05 6.152e-08 d yr n .2346800478526391 3.4376e-09 deg/d Q 3.054915387649618 2.9832e-08 au   Orbit Determination Parameters    # obs. used (total)      138      data-arc span      6236 days (17.07 yr)      first obs. used      2003-09-29      last obs. used      2020-10-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6137      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 09:32:22   Additional Information  Earth MOID = 1.13902 au   Jupiter MOID = 2.24983 au   T_jup = 3.354  [ 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 16.3   n/a MPO397546   437995 (2003 UR51)          Discovered 2003-Oct-18 by NEAT at Palomar Reference: Last Updated: 2015-07-06 Alternate Designations  2003 UR51 = 2007 TP110  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-25 11:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin