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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3529928571876501 1.0359e-06  
a 8.424115514163246 1.445e-05 AU
q 5.450462909539951 1.1426e-06 AU
i 42.01640963635511 1.5836e-05 deg
node 344.7018998364267 1.6035e-05 deg
peri 69.11809850285992 8.4952e-05 deg
M 63.1200745938187 0.00020066 deg
tp 2455434.650926590544
(2010-Aug-26.15092659)
0.0011001 JED
period 8930.687583227405
24.45
0.022978
6.291e-05
d
yr
n .04031044604853391 1.0372e-07 deg/d
Q 11.39776811878654 1.955e-05 AU
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      2402 days (6.58 yr)  
   first obs. used      2008-08-25  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .48948  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-08 03:00:08  

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
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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