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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3120086050115585 8.916e-08  
a 2.666539056270622 1.7876e-08 au
q 1.834555925114788 2.4274e-07 au
i 4.088827698890678 7.396e-06 deg
node 70.29516826905535 0.00015414 deg
peri 331.8726546633883 0.00015502 deg
M 331.5973882858375 2.055e-05 deg
tp 2457525.980467028078
(2016-May-17.48046703)
9.1785e-05 JED
period 1590.451208667665
4.35
1.5993e-05
4.379e-08
d
yr
n .226350860710512 2.2761e-09 deg/d
Q 3.498522187426456 2.3453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      6157 days (16.86 yr)  
   first obs. used      1998-09-17  
   last obs. used      2015-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64981  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 18:31:47  

Additional Information
 Earth MOID = .843264 au 
 Jupiter MOID = 1.92172 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 16.5 mag n/a MPO345329  

173222 (1998 UQ8)          Discovered 1998-Oct-17 by BAO Schmidt CCD Asteroid Program at Xinglong
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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