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173222 (1998 UQ8)
Classification: Main-belt Asteroid          SPK-ID: 2173222
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3123707943103795 1.2365e-07  
a 2.665877769494088 2.2431e-08 AU
q 1.833135413102837 3.3585e-07 AU
i 4.089866786777661 9.6777e-06 deg
node 70.3009557607872 0.00028061 deg
peri 331.9052579055131 0.00028159 deg
M 195.7551841406948 2.8741e-05 deg
tp 2457525.850552845599
(2016-May-17.35055285)
0.00013323 JED
period 1589.859610839106
4.35
2.0066e-05
5.494e-08
d
yr
n .226435087441461 2.8579e-09 deg/d
Q 3.49862012588534 2.9438e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      5292 days (14.49 yr)  
   first obs. used      1998-09-17  
   last obs. used      2013-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .67177  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-07 19:46:41  

Additional Information
 Earth MOID = .841909 AU 
 T_jup = 3.308 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4 mag n/a MPO257780  

173222 (1998 UQ8)          Discovered 1998-Oct-17 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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