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JPL Small-Body Database Browser
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100171 (1993 UJ8)
Classification: Main-belt Asteroid          SPK-ID: 2100171
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1448376236751835 3.8426e-08  
a 2.380426788343419 1.5232e-08 au
q 2.03565142898701 9.1082e-08 au
i 7.491062191727696 4.3707e-06 deg
node 81.65329670123896 3.3952e-05 deg
peri 247.8141171573576 3.7869e-05 deg
M 137.3973175969477 1.8524e-05 deg
tp 2458488.515959188033
(2019-Jan-05.01595919)		 6.7351e-05 TDB
period 1341.469090633853
3.67		 1.2876e-05
3.525e-08		 d
yr
n .2683625008682815 2.5758e-09 deg/d
Q 2.725202147699829 1.7438e-08 au
   Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      9583 days (26.24 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57992  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:55:00  

Additional Information
 Earth MOID = 1.03817 au 
 Jupiter MOID = 2.60651 au 
 T_jup = 3.513 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO453456  

100171 (1993 UJ8)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1993 UJ8 = 2004 TK222 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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