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226016 (2002 EN84)
Classification: Main-belt Asteroid          SPK-ID: 2226016
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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.arcLast 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 ]
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