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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3121956089754973 1.0291e-07  
a 2.666238441869113 1.7845e-08 AU
q 1.833850507835904 2.785e-07 AU
i 4.089406376485287 8.5281e-06 deg
node 70.30184086724725 0.00019183 deg
peri 331.8953491958272 0.00019255 deg
M 241.0408745358965 2.0827e-05 deg
tp 2457525.963032171737
(2016-May-17.46303217)
9.5886e-05 JED
period 1590.1822650748
4.35
1.5965e-05
4.371e-08
d
yr
n .2263891428716607 2.2728e-09 deg/d
Q 3.498626375902322 2.3416e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      5731 days (15.69 yr)  
   first obs. used      1998-09-17  
   last obs. used      2014-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .67309  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 17:22:29  

Additional Information
 Earth MOID = .843523 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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