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160909 (2001 UD217)
Classification: Main-belt Asteroid          SPK-ID: 2160909
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0361202875102304 5.2549e-08  
a 2.793596248988215 2.7153e-08 au
q 2.692690749287259 1.4552e-07 au
i 6.891287804185923 5.6335e-06 deg
node 55.95753025731643 5.0684e-05 deg
peri 218.1090019806544 9.8368e-05 deg
M 111.172076416539 8.3554e-05 deg
tp 2458473.831793843641
(2018-Dec-21.33179384)
0.00039652 TDB
period 1705.469217880712
4.67
2.4865e-05
6.808e-08
d
yr
n .2110856040235961 3.0775e-09 deg/d
Q 2.894501748689171 2.8134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      6577 days (18.01 yr)  
   first obs. used      2001-10-24  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59008  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:43:17  

Additional Information
 Earth MOID = 1.68049 au 
 Jupiter MOID = 2.12978 au 
 T_jup = 3.317 
[ 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 16.3   n/a MPO449863  

160909 (2001 UD217)          Discovered 2001-Oct-24 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2001 UD217 = 2004 JZ52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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