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315898 (2008 QD4)
Classification: Centaur          SPK-ID: 2315898
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3529919655246797 1.7057e-06  
a 8.424103229078343 2.3583e-05 AU
q 5.450462472463179 1.311e-06 AU
i 42.0164093336539 1.5933e-05 deg
node 344.7018912890938 1.9491e-05 deg
peri 69.11809115697342 8.8457e-05 deg
M 63.1202186109262 0.00029759 deg
tp 2455434.650779169235
(2010-Aug-26.15077917)
0.00113 JED
period 8930.668047488309
24.45
0.037501
0.0001027
d
yr
n .04031053422719565 1.6927e-07 deg/d
Q 11.39774398569351 3.1907e-05 AU
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      2097 days (5.74 yr)  
   first obs. used      2008-08-25  
   last obs. used      2014-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .52373  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 18:58:08  

Additional Information
 Earth MOID = 4.69328 AU 
 T_jup = 2.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.4 mag n/a MPO264814  

315898 (2008 QD4)          Discovered 2008-Aug-25 by La Sagra at La Sagra (J75)
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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