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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


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 
[ show covariance matrix ]

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

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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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