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JPL Small-Body Database Browser
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423156 (2004 EJ90)
Classification: Main-belt Asteroid          SPK-ID: 2423156
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1661183739228483 4.0808e-08  
a 2.418932106942858 1.8206e-08 au
q 2.017103038707742 1.0126e-07 au
i 4.127640741526936 4.8507e-06 deg
node 54.60349787956903 0.00010086 deg
peri 188.3653701802394 0.00010336 deg
M 68.65413018969495 2.3759e-05 deg
tp 2458738.441582629146
(2019-Sep-11.94158263)
9.0069e-05 TDB
period 1374.149377362125
3.76
1.5514e-05
4.248e-08
d
yr
n .2619802518784903 2.9577e-09 deg/d
Q 2.820761175177975 2.1231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5553 days (15.20 yr)  
   first obs. used      2004-03-14  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:30:06  

Additional Information
 Earth MOID = 1.00432 au 
 Jupiter MOID = 2.19432 au 
 T_jup = 3.492 
[ 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 17.7   n/a MPO477000  

423156 (2004 EJ90)          Discovered 2004-Mar-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-02-04

Alternate Designations
 2004 EJ90 = 2008 JX28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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