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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04743472758351065 5.4058e-08  
a 2.913330824938222 2.4213e-08 au
q 2.775137770896634 1.6007e-07 au
i 3.08330787389296 4.6856e-06 deg
node 104.0655658450582 0.00012785 deg
peri 30.40925123158372 0.00014362 deg
M 271.8353302166715 6.6151e-05 deg
tp 2459445.310691367158
(2021-Aug-18.81069137)		 0.00033559 TDB
period 1816.281388970358
4.97		 2.2643e-05
6.199e-08		 d
yr
n .1982071732861186 2.471e-09 deg/d
Q 3.051523878979812 2.5362e-08 au
   Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1997-02-06  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:48:28  

Additional Information
 Earth MOID = 1.78975 au 
 Jupiter MOID = 1.95178 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457040.5 (2015-Jan-18.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0449436015486351 5.5169e-08  
q 2.783171832862877 1.628e-07 au
tp 2457634.210036072873
(2016-Sep-02.71003607)		 0.00034317 TDB
node 104.1569337103559 0.00012802 deg
peri 31.48862230714265 0.00014507 deg
i 3.081810879347588 4.6835e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1997-02-06  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:48:28  

Additional Information
 Jupiter MOID = 1.95178 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.043578190292765E-15 -8.889700661597442E-15 9.157862574267289E-12 -9.455229380762723E-15 1.876191182774174E-12 -9.67035417641486E-16
q -8.889700661597442E-15 2.650325438367737E-14 -2.448786334575958E-11 2.702695381668533E-14 -5.065351411521642E-12 3.198927880101239E-15
tp 9.157862574267289E-12 -2.448786334575958E-11 1.177664731062269E-7 2.949394073032894E-11 2.349179717720004E-8 -3.716326646583122E-12
node -9.455229380762723E-15 2.702695381668533E-14 2.949394073032894E-11 1.638899427971236E-8 -1.635963400691992E-8 1.959798779627673E-10
peri 1.876191182774174E-12 -5.065351411521642E-12 2.349179717720004E-8 -1.635963400691992E-8 2.104495887059719E-8 -1.964757587107219E-10
i -9.67035417641486E-16 3.198927880101239E-15 -3.716326646583122E-12 1.959798779627673E-10 -1.964757587107219E-10 2.193500540583554E-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 1.99382268409215 1.99382198963792 1.99382337854843 3.24952241533009 3.11604703809583 2420425.705944090 3.75254225831327 168.215322800821 19.1300397862539 -83.3185297087515 2502803.72269632 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 05:48:49 2020-Feb-25 05:49
1974-Nov-15 02:00 00:02 Jupiter 1.9623992330828 1.96239863604259 1.9623998301229 3.22962623052918 3.09309450304867 2442366.583021394 1.53903203023664 88.9072097307419 19.2321944385187 86.7250471830134 2222736.49294723 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 05:48:49 2020-Feb-25 05:49
2034-Dec-11 00:34 < 00:01 Jupiter 1.98823619253943 1.98823562415056 1.98823676092818 3.41961882018873 3.29268261103897 2464307.523489213 0.731218552407971 53.435287879496 20.2497734489139 -86.2806857930105 2421963.89004045 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 05:48:49 2020-Feb-25 05:49
2069-Feb-17 19:16 00:02 Jupiter 1.98574291712989 1.9857422706507 1.98574356360941 3.23670899583772 3.10212527493839 2476795.302930093 1.97172028636489 96.2906418047822 19.7308764417548 -81.5754552253926 2453882.24388092 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 05:48:49 2020-Feb-25 05:49
2129-Mar-17 13:27 00:04 Jupiter 1.95576689839623 1.95576630079598 1.95576749599693 3.21705380555211 3.07948953090136 2498737.060522016 4.20982957919692 224.990591710139 19.3903479690971 -88.0039999625699 2236429.69427246 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 05:48:49 2020-Feb-25 05:49
2189-Apr-13 19:59 00:06 Jupiter 1.98478096139594 1.98477999840675 1.98478192439697 3.4152849006005 3.28795583600787 2520679.332644530 6.40848152546332 311.583323137222 20.5232282276137 84.7225250016124 2313224.18969269 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 05:48:49 2020-Feb-25 05:49
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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