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118304 (1998 UQ20)
Classification: Main-belt Asteroid          SPK-ID: 2118304
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2586425661724736 8.8678e-08  
a 2.302934860975787 6.0875e-09 au
q 1.707297878804961 2.0338e-07 au
i .9968333953032337 4.7972e-06 deg
node 96.07906435179524 0.00027365 deg
peri 265.0738149772707 0.00027394 deg
M 89.58044157308819 1.4328e-05 deg
tp 2458682.862619335539
(2019-Jul-18.36261934)
5.0365e-05 TDB
period 1276.500260895778
3.49
5.0614e-06
1.386e-08
d
yr
n .2820210939458578 1.1182e-09 deg/d
Q 2.898571843146613 7.662e-09 au
  Orbit Determination Parameters
   # obs. used (total)      699  
   data-arc span      7776 days (21.29 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52849  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:56:38  

Additional Information
 Earth MOID = .704717 au 
 Jupiter MOID = 2.55611 au 
 T_jup = 3.545 
[ 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 MPO502793  

118304 (1998 UQ20)          Discovered 1998-Oct-28 by Korlevic, K. at Visnjan
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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