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214039 (2004 EY54)
Classification: Main-belt Asteroid          SPK-ID: 2214039
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070439111627273 6.2611e-08  
a 2.762990080171974 1.9763e-08 au
q 2.190929807469351 1.7074e-07 au
i 9.236032652523456 5.1127e-06 deg
node 251.3305190242476 5.7405e-05 deg
peri 324.0706927649047 6.0518e-05 deg
M 156.5862295371725 1.9385e-05 deg
tp 2458270.843456672261
(2018-Jun-01.34345667)
8.897e-05 TDB
period 1677.518874899714
4.59
1.7998e-05
4.928e-08
d
yr
n .2146026523972922 2.3025e-09 deg/d
Q 3.335050352874597 2.3855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      412  
   data-arc span      8027 days (21.98 yr)  
   first obs. used      1997-11-23  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60514  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:07:59  

Additional Information
 Earth MOID = 1.1909 au 
 Jupiter MOID = 1.7009 au 
 T_jup = 3.291 
[ 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 15.3   n/a MPO440131  

214039 (2004 EY54)          Discovered 2004-Mar-14 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2004 EY54 = 1997 WF18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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