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315898 (2008 QD4)
Classification: Centaur          SPK-ID: 2315898
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3502001207856493 3.6725e-07  
a 8.381273050251288 5.6929e-06 au
q 5.446150215715779 1.1745e-06 au
i 42.06971602813844 1.3987e-05 deg
node 344.7600415602133 9.0241e-06 deg
peri 68.30790643688455 6.2887e-05 deg
M 145.5769523966428 0.00018008 deg
tp 2455416.619387717573
(2010-Aug-08.11938772)
0.00085307 TDB
period 8862.646175655394
24.26
0.0090298
2.472e-05
d
yr
n .04061992240972859 4.1386e-08 deg/d
Q 11.3163958847868 7.6866e-06 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      3926 days (10.75 yr)  
   first obs. used      2008-08-25  
   last obs. used      2019-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .48759  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:05:20  

Additional Information
 Earth MOID = 4.68521 au 
 Jupiter MOID = 1.44208 au 
 T_jup = 2.386 
[ 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 11.3   n/a MPO386287  

315898 (2008 QD4)          Discovered 2008-Aug-25 by La Sagra at La Sagra
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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