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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3119074459008989 8.9172e-08  
a 2.666184205863655 1.7936e-08 au
q 1.834581499911406 2.4276e-07 au
i 4.088952537526657 7.3964e-06 deg
node 70.29324270283071 0.00015413 deg
peri 331.86863654985 0.00015502 deg
M 16.87360012002404 2.0917e-05 deg
tp 2457525.968664043206
(2016-May-17.46866404)
9.1793e-05 JED
period 1590.133744642012
4.35
1.6046e-05
4.393e-08
d
yr
n .2263960507806512 2.2846e-09 deg/d
Q 3.497786911815904 2.3531e-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 = .843053 au 
 Jupiter MOID = 1.9211 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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