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20108 (1995 QZ9)
Classification: TransNeptunian Object          SPK-ID: 2020108
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484042627895121 9.792e-05  
a 39.41191520593514 0.009532 au
q 33.56301898467557 0.0045534 au
i 19.55043056590875 0.00019805 deg
node 187.9752064028922 0.00019787 deg
peri 142.1049547725736 0.057788 deg
M 65.7601721069114 0.063455 deg
tp 2442492.282701629763
(1975-Mar-20.78270163)
9.9838 TDB
period 90373.21583878093
247.43
32.786
0.08976
d
yr
n .003983481130539972 1.4451e-06 deg/d
Q 45.2608114271947 0.010947 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      6972 days (19.09 yr)  
   first obs. used      1995-08-29  
   last obs. used      2014-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .45527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:01:35  

Additional Information
 Earth MOID = 32.5746 au 
 Jupiter MOID = 28.6923 au 
 T_jup = 5.262 
[ 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 7.7   n/a MPO234941  

20108 (1995 QZ9)          Discovered 1995-Aug-29 by Jewitt, D. C., Chen, J. at Mauna Kea
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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