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

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3091744800213862 4.614e-08  
a 2.671810911299221 1.5962e-08 au
q 1.845755162082818 1.2252e-07 au
i 4.08833362642118 5.2357e-06 deg
node 70.25508017783466 0.00011307 deg
peri 332.4526637373864 0.00011375 deg
M 242.0996800975441 1.6451e-05 deg
tp 2459122.919631203065
(2020-Sep-30.41963120)
7.6089e-05 TDB
period 1595.170118187151
4.37
1.4294e-05
3.913e-08
d
yr
n .225681258629096 2.0223e-09 deg/d
Q 3.497866660515624 2.0896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      1998-09-17  
   last obs. used      2018-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61565  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:30:02  

Additional Information
 Earth MOID = .855304 au 
 Jupiter MOID = 1.91794 au 
 T_jup = 3.307 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO417933  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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