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(2004 UE)
Classification: Apollo [NEO, PHA]          SPK-ID: 3257091
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .645309359045633 2.9206e-06  
a 2.631814659058153 9.9485e-05 au
q .9334800282944352 2.7602e-05 au
i 14.58728323837007 0.00037052 deg
node 225.5995187884561 0.001164 deg
peri 217.4979161074056 0.0013797 deg
M 277.8106796491538 0.057936 deg
tp 2459556.536290588458
(2021-Dec-08.03629059)
0.27116 TDB
period 1559.485637120555
4.27
0.088425
0.0002421
d
yr
n .2308453450489653 1.3089e-05 deg/d
Q 4.330149289821871 0.00016368 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      178 days  
   first obs. used      2004-09-12  
   last obs. used      2005-03-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .37096  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 22:26:50  

Additional Information
 Earth MOID = .0178537 au 
 Jupiter MOID = 1.17319 au 
 T_jup = 3.029 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.0   n/a MPO206087  
rotation period rot_per 5.6 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Gandolfi, D.; Cigna, M.; Fulvio, D.; Blanco, C. (2009) Planet. Space Sci. 57, 1-9.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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