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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3536079265056163 2.3102e-06  
a 8.429658158332225 3.1699e-05 AU
q 5.448864215813215 1.5124e-06 AU
i 42.01053890381167 1.9984e-05 deg
node 344.7035389244288 2.462e-05 deg
peri 69.15975171356652 0.00010194 deg
M 54.95066556379466 0.00034312 deg
tp 2455435.967675625764
(2010-Aug-27.46767563)
0.0012964 JED
period 8939.502947501745
24.48
0.050424
0.0001381
d
yr
n .04027069537469155 2.2715e-07 deg/d
Q 11.41045210085124 4.2908e-05 AU
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      2049 days (5.61 yr)  
   first obs. used      2008-08-25  
   last obs. used      2014-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .45154  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 17:34:55  

Additional Information
 Earth MOID = 4.69112 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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