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193346 (2000 UD18)
Classification: Main-belt Asteroid          SPK-ID: 2193346
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2404671782194986 3.5152e-08  
a 2.653359298040437 1.8178e-08 au
q 2.015313474838184 9.2978e-08 au
i 5.067450163178934 8.0126e-06 deg
node 143.4205128412501 9.4419e-05 deg
peri 320.3755776536093 9.718e-05 deg
M 148.7405984753923 2.3551e-05 deg
tp 2458348.241803953675
(2018-Aug-17.74180395)
9.9816e-05 TDB
period 1578.674235437642
4.32
1.6223e-05
4.442e-08
d
yr
n .2280394472265524 2.3435e-09 deg/d
Q 3.29140512124269 2.255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      6791 days (18.59 yr)  
   first obs. used      2000-10-24  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:31:22  

Additional Information
 Earth MOID = 1.03514 au 
 Jupiter MOID = 1.87659 au 
 T_jup = 3.342 
[ 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 16.2   n/a MPO436955  
diameter diameter 1.513 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.307   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193346 (2000 UD18)          Discovered 2000-Oct-24 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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