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JPL Small-Body Database Browser
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183991 (2004 EJ54)
Classification: Main-belt Asteroid          SPK-ID: 2183991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1018656603287514 5.6538e-08  
a 2.593646367006757 2.2373e-08 au
q 2.329442867172347 1.4608e-07 au
i 3.679478722077597 5.7513e-06 deg
node 119.6556001525278 8.7238e-05 deg
peri 26.98393206639483 9.1173e-05 deg
M 251.7221933168819 2.9007e-05 deg
tp 2459059.382523916046
(2020-Jul-28.88252392)
0.00012656 TDB
period 1525.683920558515
4.18
1.9741e-05
5.405e-08
d
yr
n .23595975231109 3.0532e-09 deg/d
Q 2.857849866841167 2.4652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      5793 days (15.86 yr)  
   first obs. used      2002-11-05  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59097  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:00:03  

Additional Information
 Earth MOID = 1.34253 au 
 Jupiter MOID = 2.14286 au 
 T_jup = 3.408 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO412996  

183991 (2004 EJ54)          Discovered 2004-Mar-12 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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