+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   359759 (2011 UN99) Classification: Main-belt Asteroid          SPK-ID: 2359759 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .103894453376165 6.3642e-08   a 2.705306461887526 2.9684e-08 au q 2.424240125814714 1.7706e-07 au i 2.56973437415991 7.3292e-06 deg node 346.1955066456601 0.00015073 deg peri 58.56695589927718 0.00015914 deg M 335.6854762479613 4.8932e-05 deg tp 2459110.270691079269 (2020-Sep-17.77069108) 0.0002216 TDB period 1625.26106583616 4.45 2.675e-05 7.324e-08 d yr n .2215028757947808 3.6457e-09 deg/d Q 2.986372797960337 3.2768e-08 au   Orbit Determination Parameters    # obs. used (total)      126      data-arc span      5181 days (14.18 yr)      first obs. used      2006-08-19      last obs. used      2020-10-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55058      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 16:21:13   Additional Information  Earth MOID = 1.43443 au   Jupiter MOID = 2.36393 au   T_jup = 3.356  [ hide covariance matrix ] Orbital Elements at Epoch 2457350.5 (2015-Nov-24.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1049259918036129 6.2925e-08   q 2.422220916004995 1.7549e-07 au tp 2457476.329618947087 (2016-Mar-28.82961895) 0.00020893 TDB node 346.4758338657098 0.00015031 deg peri 56.71728515239158 0.00015857 deg i 2.57438472316741 7.3342e-06 deg   Orbit Determination Parameters    # obs. used (total)      126      data-arc span      5181 days (14.18 yr)      first obs. used      2006-08-19      last obs. used      2020-10-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55058      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 16:21:13   Additional Information  Jupiter MOID = 2.36393 au   T_jup = 3.356  Orbit Covariance (6×6)   e q tp node peri i e 3.959522788600661E-15 -1.09138414474994E-14 2.542548864402583E-12 3.798008580032839E-14 7.240901256161871E-13 -2.114849569649817E-15 q -1.09138414474994E-14 3.07980508407193E-14 -5.143468652241185E-12 -1.063499849206819E-13 -1.561330184299366E-12 6.6967230670144E-15 tp 2.542548864402583E-12 -5.143468652241185E-12 4.365260736094613E-8 6.229343818270244E-11 1.05873405226292E-8 3.165699204193969E-12 node 3.798008580032839E-14 -1.063499849206819E-13 6.229343818270244E-11 2.259448051920883E-8 -2.255416401742592E-8 -1.104606937207667E-10 peri 7.240901256161871E-13 -1.561330184299366E-12 1.05873405226292E-8 -2.255416401742592E-8 2.514290686355723E-8 1.110258360256058E-10 i -2.114849569649817E-15 6.6967230670144E-15 3.165699204193969E-12 -1.104606937207667E-10 1.110258360256058E-10 5.379076588566034E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.1   n/a MPO476689   359759 (2011 UN99)          Discovered 2006-Aug-19 by Spacewatch at Kitt Peak Reference: 20130327/Numbers.arc Last Updated: 2013-03-29 Alternate Designations  2011 UN99 = 2006 QR152  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 09:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin