+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   359941 (2011 YQ52) Classification: Main-belt Asteroid          SPK-ID: 2359941 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2346187461847284 9.5294e-08   a 3.0120542852679 4.7765e-08 au q 2.305369885418007 3.0096e-07 au i 14.53253184915209 9.8004e-06 deg node 213.1078610791174 2.1074e-05 deg peri 215.5178248607551 2.7451e-05 deg M 229.4830804030091 1.8178e-05 deg tp 2459692.740386888663 (2022-Apr-23.24038689) 0.00010723 TDB period 1909.381098247005 5.23 4.5418e-05 1.243e-07 d yr n .188542769345792 4.4848e-09 deg/d Q 3.718738685117792 5.8971e-08 au   Orbit Determination Parameters    # obs. used (total)      228      data-arc span      6354 days (17.40 yr)      first obs. used      2002-02-09      last obs. used      2019-07-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61447      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 06:45:16   Additional Information  Earth MOID = 1.33394 au   Jupiter MOID = 1.72521 au   T_jup = 3.159  [ hide covariance matrix ] Orbital Elements at Epoch 2457293.5 (2015-Sep-28.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2390535670193585 9.6423e-08   q 2.284579751588471 3.0525e-07 au tp 2457784.625746360589 (2017-Jan-31.12574636) 7.7729e-05 TDB node 213.3687522912051 2.0955e-05 deg peri 214.8074859408829 2.6939e-05 deg i 14.60207029354569 9.8297e-06 deg   Orbit Determination Parameters    # obs. used (total)      228      data-arc span      6354 days (17.40 yr)      first obs. used      2002-02-09      last obs. used      2019-07-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61447      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 06:45:16   Additional Information  Jupiter MOID = 1.72521 au   T_jup = 3.159  Orbit Covariance (6×6)   e q tp node peri i e 9.297429265270242E-15 -2.924965471454017E-14 -4.949839737578676E-12 6.441191303529315E-14 -1.190326482086805E-12 2.396034857568119E-15 q -2.924965471454017E-14 9.317977128572968E-14 1.601078432441445E-11 -2.075886014421229E-13 3.746188347332973E-12 -5.393548753469518E-15 tp -4.949839737578676E-12 1.601078432441445E-11 6.04185401898364E-9 -5.223108356591786E-11 1.315025639732686E-9 -6.794563953799677E-12 node 6.441191303529315E-14 -2.075886014421229E-13 -5.223108356591786E-11 4.390986797446658E-10 -4.351337906009876E-10 3.838199063888699E-11 peri -1.190326482086805E-12 3.746188347332973E-12 1.315025639732686E-9 -4.351337906009876E-10 7.25727820928344E-10 -3.872475725300173E-11 i 2.396034857568119E-15 -5.393548753469518E-15 -6.794563953799677E-12 3.838199063888699E-11 -3.872475725300173E-11 9.662284034954681E-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 15.7   n/a MPO434270   359941 (2011 YQ52)          Discovered 2003-Apr-25 by Spacewatch at Kitt Peak Reference: 20130327/Numbers.arc Last Updated: 2013-03-29 [ show close-approach data ] Alternate Designations  2011 YQ52 = 2003 HM18 = 2010 JE56  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-12 20:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin