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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494013755176921 0.00010075  
a 39.54182694019781 0.009603 au
q 33.63422360484972 0.0044693 au
i 19.53039678141472 0.00019793 deg
node 187.9148212209304 0.00019845 deg
peri 143.2925698255311 0.056841 deg
M 66.17236861703829 0.063051 deg
tp 2442702.604023291198
(1975-Oct-17.10402329)
9.8722 TDB
period 90820.42364836467
248.65
33.085
0.09058
d
yr
n .003963866116654943 1.444e-06 deg/d
Q 45.4494302755459 0.011038 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 = 32.6441 au 
 Jupiter MOID = 28.7603 au 
 T_jup = 5.269 
[ 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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