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266996 (2010 XQ78)
Classification: Jupiter Trojan          SPK-ID: 2266996
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06527324039114543 1.2665e-07  
a 5.201162679491111 3.1627e-07 au
q 4.861665937599233 9.0089e-07 au
i 24.20445429663645 9.0828e-06 deg
node 92.68719365316608 2.0571e-05 deg
peri 329.1965278131653 7.5424e-05 deg
M 302.1481400086715 8.2123e-05 deg
tp 2459696.747917272715
(2022-Apr-27.24791727)
0.0010215 TDB
period 4332.604867946298
11.86
0.00039518
1.082e-06
d
yr
n .08309089127036963 7.5787e-09 deg/d
Q 5.540659421382988 3.3691e-07 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      6743 days (18.46 yr)  
   first obs. used      2002-04-10  
   last obs. used      2020-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50601  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:22:14  

Additional Information
 Earth MOID = 3.89419 au 
 Jupiter MOID = .244587 au 
 T_jup = 2.820 
[ 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 12.9   n/a MPO454985  
diameter diameter 14.525 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.070   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

266996 (2010 XQ78)          Discovered 2009-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2010 XQ78 = 2010 BL65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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