+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   434611 (2005 UU391) Classification: Outer Main-belt Asteroid          SPK-ID: 2434611 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04504729193489432 1.2482e-07   a 3.368619916270004 5.7657e-08 au q 3.216872711484089 4.1855e-07 au i 5.973969306822961 1.5166e-05 deg node 188.5134538137001 7.4085e-05 deg peri 215.8244333253658 0.00015787 deg M 122.7858029014371 0.00013697 deg tp 2458230.267041029499 (2018-Apr-21.76704103) 0.00085467 TDB period 2258.27301428295 6.18 5.7979e-05 1.587e-07 d yr n .1594138519670119 4.0928e-09 deg/d Q 3.520367121055918 6.0255e-08 au   Orbit Determination Parameters    # obs. used (total)      93      data-arc span      6507 days (17.82 yr)      first obs. used      2002-04-06      last obs. used      2020-01-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57741      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 09:49:06   Additional Information  Earth MOID = 2.22724 au   Jupiter MOID = 1.70968 au   T_jup = 3.144  [ hide covariance matrix ] Orbital Elements at Epoch 2457020.5 (2014-Dec-29.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04525844329926022 1.2234e-07   q 3.214899633837846 4.094e-07 au tp 2455984.554185775899 (2012-Feb-27.05418578) 0.0008613 TDB node 188.5515072243417 7.4094e-05 deg peri 217.8576296663396 0.00016036 deg i 5.973953246965346 1.5167e-05 deg   Orbit Determination Parameters    # obs. used (total)      93      data-arc span      6507 days (17.82 yr)      first obs. used      2002-04-06      last obs. used      2020-01-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57741      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 09:49:06   Additional Information  Jupiter MOID = 1.70968 au   T_jup = 3.144  Orbit Covariance (6×6)   e q tp node peri i e 1.496752197653871E-14 -4.964690211875967E-14 -6.590406031185706E-11 3.51647619388005E-14 -1.083347750288304E-11 1.457075821830924E-14 q -4.964690211875967E-14 1.676106424964624E-13 2.284179155938396E-10 -1.343974295923079E-13 3.777556354547428E-11 -4.03992255562188E-14 tp -6.590406031185706E-11 2.284179155938396E-10 7.418448773496451E-7 -3.463220128368174E-10 1.224732611342713E-7 -8.660887171184489E-11 node 3.51647619388005E-14 -1.343974295923079E-13 -3.463220128368174E-10 5.48994965091257E-9 -5.517575247133045E-9 -9.57281757207412E-11 peri -1.083347750288304E-11 3.777556354547428E-11 1.224732611342713E-7 -5.517575247133045E-9 2.57144351346561E-8 8.238584313251401E-11 i 1.457075821830924E-14 -4.03992255562188E-14 -8.660887171184489E-11 -9.57281757207412E-11 8.238584313251401E-11 2.300426587106307E-10 [ 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 15.9   n/a MPO472395   434611 (2005 UU391)          Discovered 2005-Oct-30 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-06-04 [ show close-approach data ] Alternate Designations  2005 UU391 = 2011 SE142  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-21 20:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin