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266522 (2008 EJ166)
Classification: Main-belt Asteroid          SPK-ID: 2266522
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454437579024991 4.3313e-08  
a 2.273852795850374 1.4127e-08 au
q 1.943135100304791 9.375e-08 au
i 6.927926437769173 5.6111e-06 deg
node 171.3994011937432 4.0953e-05 deg
peri 137.4638447849665 4.9357e-05 deg
M 112.4358848714581 2.581e-05 deg
tp 2458609.349051899974
(2019-May-05.84905190)
8.8643e-05 TDB
period 1252.396790197319
3.43
1.1671e-05
3.195e-08
d
yr
n .2874488363574302 2.6787e-09 deg/d
Q 2.604570491395956 1.6181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      6611 days (18.10 yr)  
   first obs. used      2002-10-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:20:51  

Additional Information
 Earth MOID = .935543 au 
 Jupiter MOID = 2.65684 au 
 T_jup = 3.587 
[ 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 MPO437227  

266522 (2008 EJ166)          Discovered 2008-Mar-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2008 EJ166 = 2005 NE3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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