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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3507809863995724 7.525e-07  
a 8.402151431718853 1.0634e-05 au
q 5.454836464621935 1.1091e-06 au
i 42.02597613881223 1.5512e-05 deg
node 344.7007904218108 1.3797e-05 deg
peri 68.81698172463682 8.0259e-05 deg
M 87.97550450484277 0.00020547 deg
tp 2455426.580546168997
(2010-Aug-18.08054617)
0.0010557 JED
period 8895.783068070737
24.36
0.016888
4.624e-05
d
yr
n .04046861273990965 7.6827e-08 deg/d
Q 11.34946639881577 1.4364e-05 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      2777 days (7.60 yr)  
   first obs. used      2008-08-25  
   last obs. used      2016-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .48108  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 19:24:58  

Additional Information
 Earth MOID = 4.69512 au 
 Jupiter MOID = 1.46224 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 MPO368184  

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 | Physical Parameters | Discovery Circumstances ]
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