+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   390083 (2012 UW140) Classification: Main-belt Asteroid          SPK-ID: 2390083 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1216278786867263 7.4101e-08   a 2.644936510975255 2.9131e-08 au q 2.323238493884263 1.9697e-07 au i 4.440350768387332 9.5077e-06 deg node 186.9389055405124 9.6549e-05 deg peri 232.857657822181 0.00010524 deg M 255.3703763592669 4.1512e-05 deg tp 2459457.139490414913 (2021-Aug-30.63949041) 0.00018395 TDB period 1571.163221554114 4.30 2.5956e-05 7.106e-08 d yr n .2291295996885075 3.7853e-09 deg/d Q 2.966634528066246 3.2674e-08 au   Orbit Determination Parameters    # obs. used (total)      97      data-arc span      8080 days (22.12 yr)      first obs. used      1995-12-14      last obs. used      2018-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67044      source      ORB      producer      Otto Matic      solution date      2018-Feb-06 09:39:00   Additional Information  Earth MOID = 1.33872 au   Jupiter MOID = 2.35057 au   T_jup = 3.378  [ hide covariance matrix ] Orbital Elements at Epoch 2456601.5 (2013-Nov-05.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1243573814710019 7.4847e-08   q 2.313927139572465 2.0022e-07 au tp 2456316.440127603153 (2013-Jan-23.94012760) 0.00016361 TDB node 187.1449401368881 9.6471e-05 deg peri 232.4005641414389 0.00010468 deg i 4.443423720959612 9.5146e-06 deg   Orbit Determination Parameters    # obs. used (total)      97      data-arc span      8080 days (22.12 yr)      first obs. used      1995-12-14      last obs. used      2018-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67044      source      ORB      producer      Otto Matic      solution date      2018-Feb-06 09:39:00   Additional Information  Jupiter MOID = 2.35057 au   T_jup = 3.378  Orbit Covariance (6×6)   e q tp node peri i e 5.602028431437075E-15 -1.487025458825295E-14 -3.953381525340242E-12 4.562296283750059E-14 -1.152263712289895E-12 2.95125916804404E-15 q -1.487025458825295E-14 4.008689957077805E-14 1.106260400545705E-11 -1.283831350589761E-13 3.220859686214136E-12 -7.499739961319828E-15 tp -3.953381525340242E-12 1.106260400545705E-11 2.676933187797959E-8 -1.811879998816166E-10 6.68351135852288E-9 -1.351166331856853E-11 node 4.562296283750059E-14 -1.283831350589761E-13 -1.811879998816166E-10 9.306667277590407E-9 -9.322129884369814E-9 -7.622113128562139E-11 peri -1.152263712289895E-12 3.220859686214136E-12 6.68351135852288E-9 -9.322129884369814E-9 1.095691728618544E-8 7.272532650005254E-11 i 2.95125916804404E-15 -7.499739961319828E-15 -1.351166331856853E-11 -7.622113128562139E-11 7.272532650005254E-11 9.052711448403046E-11 [ 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 17.2   n/a MPO434435   390083 (2012 UW140)          Discovered 2010-Mar-13 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2014-03-21 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-06 08:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin