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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3529923866456252 1.5236e-06  
a 8.424109030102597 2.1089e-05 AU
q 5.450462678203718 1.2587e-06 AU
i 42.01640970455835 1.591e-05 deg
node 344.7018938641765 1.9241e-05 deg
peri 69.11809552550881 8.7328e-05 deg
M 63.12015066889898 0.0002702 deg
tp 2455434.650847218772
(2010-Aug-26.15084722)
0.0011196 JED
period 8930.677272273926
24.45
0.033536
9.182e-05
d
yr
n .0403104925891401 1.5137e-07 deg/d
Q 11.39775538200148 2.8534e-05 AU
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      2341 days (6.41 yr)  
   first obs. used      2008-08-25  
   last obs. used      2015-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .51338  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 22:09:17  

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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