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392227 (2009 VK8)
Classification: Jupiter Trojan          SPK-ID: 2392227
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0775324658582382 1.0477e-07  
a 5.277313273955182 5.3449e-07 au
q 4.868150162719025 8.276e-07 au
i 6.035981557779727 1.3247e-05 deg
node 245.2969610240171 0.00015585 deg
peri 209.4997689482309 0.00024617 deg
M 269.2529561611871 0.00021176 deg
tp 2460116.714670248767
(2023-Jun-21.21467025)
0.00275 TDB
period 4428.103266959411
12.12
0.00067272
1.842e-06
d
yr
n .08129891700723517 1.2351e-08 deg/d
Q 5.686476385191338 5.7593e-07 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      4015 days (10.99 yr)  
   first obs. used      2008-09-28  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66029  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:38  

Additional Information
 Earth MOID = 3.88648 au 
 Jupiter MOID = .147294 au 
 T_jup = 2.983 
[ 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 14.3   n/a MPO494987  

392227 (2009 VK8)          Discovered 2009-Nov-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

Alternate Designations
 2009 VK8 = 2008 SW228 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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