+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   357107 (2001 UG8) Classification: Main-belt Asteroid          SPK-ID: 2357107 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2001321843638675 5.2503e-08   a 2.275489823555994 1.2107e-08 au q 1.820091074669982 1.1833e-07 au i 6.002290611149077 7.8972e-06 deg node 50.74034266387741 5.0508e-05 deg peri 34.57805959738263 5.4636e-05 deg M 112.4316323976558 2.1351e-05 deg tp 2458608.941380435703 (2019-May-05.44138044) 7.2531e-05 TDB period 1253.749501248777 3.43 1.0006e-05 2.739e-08 d yr n .2871386984732021 2.2917e-09 deg/d Q 2.730888572442007 1.453e-08 au   Orbit Determination Parameters    # obs. used (total)      298      data-arc span      6816 days (18.66 yr)      first obs. used      2001-09-26      last obs. used      2020-05-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5605      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 16:28:09   Additional Information  Earth MOID = .839695 au   Jupiter MOID = 2.50887 au   T_jup = 3.575  [ hide covariance matrix ] Orbital Elements at Epoch 2457636.5 (2016-Sep-05.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .199594451294603 5.2296e-08   q 1.82220887149854 1.1774e-07 au tp 2457355.501724991321 (2015-Nov-29.00172499) 6.7802e-05 TDB node 50.74931921295477 5.052e-05 deg peri 34.79151955239396 5.4678e-05 deg i 6.000982118203719 7.8954e-06 deg   Orbit Determination Parameters    # obs. used (total)      298      data-arc span      6816 days (18.66 yr)      first obs. used      2001-09-26      last obs. used      2020-05-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5605      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 16:28:09   Additional Information  Jupiter MOID = 2.50887 au   T_jup = 3.575  Orbit Covariance (6×6)   e q tp node peri i e 2.734831381312158E-15 -6.137408167489154E-15 -1.142333970389583E-12 2.25809037532664E-14 -4.550885554456024E-13 -2.751592493601314E-15 q -6.137408167489154E-15 1.386318576482601E-14 2.889051803468177E-12 -5.165662104103209E-14 1.116953007839753E-12 6.264968739264386E-15 tp -1.142333970389583E-12 2.889051803468177E-12 4.597048267881179E-9 -1.824682855073764E-11 1.429550178038749E-9 1.914236350631764E-12 node 2.25809037532664E-14 -5.165662104103209E-14 -1.824682855073764E-11 2.552319561178219E-9 -2.544639185637845E-9 -1.722888762645025E-10 peri -4.550885554456024E-13 1.116953007839753E-12 1.429550178038749E-9 -2.544639185637845E-9 2.989656069776221E-9 1.721571323069915E-10 i -2.751592493601314E-15 6.264968739264386E-15 1.914236350631764E-12 -1.722888762645025E-10 1.721571323069915E-10 6.233699938513588E-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 17.0   n/a MPO455578   357107 (2001 UG8)          Discovered 2001-Oct-17 by LINEAR at Socorro Reference: 20130327/Numbers.arc Last Updated: 2013-03-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 08:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin