+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226016 (2002 EN84) Classification: Main-belt Asteroid          SPK-ID: 2226016 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04743472548028556 5.3701e-08   a 2.913330823952565 2.4016e-08 au q 2.775137776085121 1.5935e-07 au i 3.083308066776061 4.6679e-06 deg node 104.0655733262837 0.00012665 deg peri 30.40924126590309 0.0001423 deg M 271.8353329515535 6.5503e-05 deg tp 2459445.310677343323 (2021-Aug-18.81067734) 0.00033224 TDB period 1816.281388048614 4.97 2.2459e-05 6.149e-08 d yr n .1982071733867068 2.4509e-09 deg/d Q 3.051523871820009 2.5156e-08 au   Orbit Determination Parameters    # obs. used (total)      352      data-arc span      8679 days (23.76 yr)      first obs. used      1997-02-06      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53841      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:33:10   Additional Information  Earth MOID = 1.78975 au   Jupiter MOID = 1.95178 au   T_jup = 3.279  [ hide covariance matrix ] Orbital Elements at Epoch 2457052.5 (2015-Jan-30.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04495064564582475 5.4801e-08   q 2.783113509910129 1.6205e-07 au tp 2457634.274843537793 (2016-Sep-02.77484354) 0.00033999 TDB node 104.1568403857911 0.00012682 deg peri 31.50396269121308 0.00014373 deg i 3.081811120323153 4.6657e-06 deg   Orbit Determination Parameters    # obs. used (total)      352      data-arc span      8679 days (23.76 yr)      first obs. used      1997-02-06      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53841      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:33:10   Additional Information  Jupiter MOID = 1.95178 au   T_jup = 3.279  Orbit Covariance (6×6)   e q tp node peri i e 3.003101235131854E-15 -8.790780385497084E-15 8.86137352430894E-12 -9.69018793093826E-15 1.819795254460197E-12 -9.683725777502432E-16 q -8.790780385497084E-15 2.626141133961435E-14 -2.376122954255965E-11 2.770315576577949E-14 -4.927237259093554E-12 3.204767936658831E-15 tp 8.86137352430894E-12 -2.376122954255965E-11 1.15590494489337E-7 3.241203370271399E-11 2.307285752421804E-8 -3.616024904095722E-12 node -9.69018793093826E-15 2.770315576577949E-14 3.241203370271399E-11 1.608251956335709E-8 -1.60529985243443E-8 1.888466250208542E-10 peri 1.819795254460197E-12 -4.927237259093554E-12 2.307285752421804E-8 -1.60529985243443E-8 2.065862670398249E-8 -1.89332590452986E-10 i -9.683725777502432E-16 3.204767936658831E-15 -3.616024904095722E-12 1.888466250208542E-10 -1.89332590452986E-10 2.176909380353587E-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 15.6   n/a MPO494237   226016 (2002 EN84)          Discovered 2002-Mar-09 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1914-Oct-20 04:57 00:04 Jupiter 1.99382268377209 1.99382198932772 1.99382337821851 3.24952244230721 3.11604706620663 2420425.705993251 3.71932008715856 166.803434954079 19.0187340766726 -83.228662133955 2520199.90312052 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:11 2020-Dec-18 05:33 1974-Nov-15 02:00 00:02 Jupiter 1.96239924261772 1.9623986524252 1.96239983281024 3.22962629847262 3.09309457466921 2442366.583039383 1.52625402763508 88.3477612004985 19.0809515660049 86.9077394739822 2242771.59770941 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:11 2020-Dec-18 05:33 2034-Dec-11 00:34 < 00:01 Jupiter 1.98823620084393 1.98823563733111 1.98823676435662 3.41961888662102 3.2926826805727 2464307.523488117 0.723682256376962 53.0133556323883 20.1174259176279 -86.6389881173753 2436325.59827337 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:11 2020-Dec-18 05:33 2069-Feb-17 19:16 00:02 Jupiter 1.98574292930716 1.98574229314928 1.98574356546538 3.23670905684439 3.10212533943501 2476795.302913449 1.9551484698317 95.5390945538935 19.5344145116736 -81.7627228062705 2475905.67471596 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:11 2020-Dec-18 05:33 2129-Mar-17 13:27 00:04 Jupiter 1.95576690814579 1.95576631734073 1.95576749895119 3.21705384033845 3.07948956794273 2498737.060469144 4.17253950293922 222.942328782361 19.2418054812289 -88.0873703169969 2253407.9577362 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:11 2020-Dec-18 05:33 2189-Apr-13 19:59 00:06 Jupiter 1.98478095572284 1.98477999364841 1.984781917809 3.41528484620401 3.28795577913384 2520679.332567008 6.35086262363748 308.685655653293 20.3916021964755 84.6641357001767 2327739.21980735 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:11 2020-Dec-18 05:33 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 15:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin