+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   295800 (2008 UR286) Classification: Main-belt Asteroid          SPK-ID: 2295800 [ 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 .07197993634751741 6.2569e-08   a 2.710531792369859 2.7761e-08 au q 2.515427886487154 1.7823e-07 au i 3.535952642020464 6.8809e-06 deg node 146.3525620713849 0.00010543 deg peri 282.2785585533606 0.0001171 deg M 190.2515710538179 5.4228e-05 deg tp 2459769.070034586411 (2022-Jul-08.57003459) 0.00025129 TDB period 1629.972154492398 4.46 2.5041e-05 6.856e-08 d yr n .2208626687319762 3.3931e-09 deg/d Q 2.905635698252564 2.976e-08 au   Orbit Determination Parameters    # obs. used (total)      145      data-arc span      7108 days (19.46 yr)      first obs. used      2001-02-03      last obs. used      2020-07-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56842      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:48:07   Additional Information  Earth MOID = 1.53246 au   Jupiter MOID = 2.2861 au   T_jup = 3.357  [ hide covariance matrix ] Orbital Elements at Epoch 2457014.5 (2014-Dec-23.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07339760941647334 6.2558e-08   q 2.510115881248757 1.7839e-07 au tp 2456513.760990087041 (2013-Aug-09.26099009) 0.00022585 TDB node 146.383558106843 0.00010548 deg peri 282.8553189852257 0.00011672 deg i 3.535755098998229 6.8812e-06 deg   Orbit Determination Parameters    # obs. used (total)      145      data-arc span      7108 days (19.46 yr)      first obs. used      2001-02-03      last obs. used      2020-07-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56842      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:48:07   Additional Information  Jupiter MOID = 2.2861 au   T_jup = 3.357  Orbit Covariance (6×6)   e q tp node peri i e 3.913525651683938E-15 -1.104897428818079E-14 -1.747347164078118E-12 -6.094791170469608E-15 -4.945968321988496E-13 -4.241746011511491E-16 q -1.104897428818079E-14 3.182174005890963E-14 6.578706420448008E-12 1.921578594907519E-14 1.779530937743956E-12 1.804114720989085E-15 tp -1.747347164078118E-12 6.578706420448008E-12 5.100939430802524E-8 -8.533072535472388E-12 1.132335661429659E-8 4.918960176621209E-13 node -6.094791170469608E-15 1.921578594907519E-14 -8.533072535472388E-12 1.112518866171966E-8 -1.110545413618681E-8 3.375921778319814E-11 peri -4.945968321988496E-13 1.779530937743956E-12 1.132335661429659E-8 -1.110545413618681E-8 1.362279853050223E-8 -3.357549257308898E-11 i -4.241746011511491E-16 1.804114720989085E-15 4.918960176621209E-13 3.375921778319814E-11 -3.357549257308898E-11 4.735074241604325E-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 16.9   n/a MPO471118   295800 (2008 UR286)          Discovered 2008-Oct-28 by Mt. Lemmon Survey at Mount Lemmon Reference: 20110912/Numbers.arc Last Updated: 2011-09-14 [ show close-approach data ] Alternate Designations  2008 UR286 = 2006 GJ33  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 16:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin