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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 ]

[ show orbit diagram ]
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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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