+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   452323 (2000 KQ39) Classification: Main-belt Asteroid          SPK-ID: 2452323 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2342510115488194 1.1307e-07   a 2.635676175249076 1.7454e-08 au q 2.018266365081856 2.9662e-07 au i 4.489032012371938 7.2084e-06 deg node 107.5336209237397 0.00013195 deg peri 90.80696888790726 0.00013334 deg M 268.3915964302922 1.7518e-05 deg tp 2459398.212569898333 (2021-Jul-02.71256990) 7.7576e-05 TDB period 1562.919116415475 4.28 1.5525e-05 4.251e-08 d yr n .2303382153426168 2.288e-09 deg/d Q 3.253085985416295 2.1542e-08 au   Orbit Determination Parameters    # obs. used (total)      107      data-arc span      6660 days (18.23 yr)      first obs. used      2000-05-24      last obs. used      2018-08-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60995      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 13:04:51   Additional Information  Earth MOID = 1.02238 au   Jupiter MOID = 1.71713 au   T_jup = 3.354  [ hide covariance matrix ] Orbital Elements at Epoch 2457093.5 (2015-Mar-12.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .234648322361233 1.1314e-07   q 2.016608446010217 2.9694e-07 au tp 2457836.350533576671 (2017-Mar-23.85053358) 7.2102e-05 TDB node 107.5675754800288 0.00013199 deg peri 90.87602904415144 0.00013335 deg i 4.48895930690535 7.2066e-06 deg   Orbit Determination Parameters    # obs. used (total)      107      data-arc span      6660 days (18.23 yr)      first obs. used      2000-05-24      last obs. used      2018-08-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60995      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 13:04:51   Additional Information  Jupiter MOID = 1.71713 au   T_jup = 3.354  Orbit Covariance (6×6)   e q tp node peri i e 1.280160431985877E-14 -3.356387739719905E-14 4.587903869724407E-12 1.771903780108123E-13 1.368476423563054E-12 -4.15666819152807E-14 q -3.356387739719905E-14 8.817521252259913E-14 -1.189693323193457E-11 -4.681337971131168E-13 -3.580652762376335E-12 1.103886288651398E-13 tp 4.587903869724407E-12 -1.189693323193457E-11 5.198645016487033E-9 7.844052297777469E-11 1.487011733784407E-9 -1.60879861742626E-11 node 1.771903780108123E-13 -4.681337971131168E-13 7.844052297777469E-11 1.742062324466406E-8 -1.734464034398729E-8 -3.043578359854835E-10 peri 1.368476423563054E-12 -3.580652762376335E-12 1.487011733784407E-9 -1.734464034398729E-8 1.778275291564944E-8 2.98108497015209E-10 i -4.15666819152807E-14 1.103886288651398E-13 -1.60879861742626E-11 -3.043578359854835E-10 2.98108497015209E-10 5.193550755767876E-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 17.4   n/a MPO437750   452323 (2000 KQ39)          Discovered 2000-May-24 by Spacewatch at Kitt Peak Reference: Last Updated: 2016-01-04 [ show close-approach data ] Alternate Designations  2000 KQ39 = 2004 EA53  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 14:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin