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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1489856678226973 9.9319e-05  
a 39.47699264973699 0.0095679 au
q 33.59548653618421 0.0045117 au
i 19.53967547481765 0.00019799 deg
node 187.9432650701143 0.00019818 deg
peri 142.6889937132712 0.057289 deg
M 65.97709330268721 0.063231 deg
tp 2442596.787852800091
(1975-Jul-03.28785280)
9.9214 TDB
period 90597.14627877543
248.04
32.937
0.09018
d
yr
n .00397363509543941 1.4446e-06 deg/d
Q 45.35849876328976 0.010993 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .45539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:14  

Additional Information
 Earth MOID = 32.6048 au 
 Jupiter MOID = 28.7233 au 
 T_jup = 5.265 
[ 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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