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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449366767822751 3.8353e-08  
a 2.380290406307707 1.5093e-08 au
q 2.035299025040737 9.1018e-08 au
i 7.490659194605512 4.3092e-06 deg
node 81.64868127704398 3.3896e-05 deg
peri 247.8530907217135 3.7771e-05 deg
M 191.02369297321 1.8697e-05 deg
tp 2459830.102813071235
(2022-Sep-07.60281307)
7.2297e-05 TDB
period 1341.353806896193
3.67
1.2758e-05
3.493e-08
d
yr
n .268385565500438 2.5527e-09 deg/d
Q 2.725281787574678 1.7281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      9956 days (27.26 yr)  
   first obs. used      1993-10-10  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:32:50  

Additional Information
 Earth MOID = 1.03593 au 
 Jupiter MOID = 2.60628 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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