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461469 (2002 QU139)
Classification: Main-belt Asteroid          SPK-ID: 2461469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006430960000553 1.4408e-07  
a 3.046644590822162 5.3171e-08 au
q 2.740020846789998 4.5191e-07 au
i 12.04287808128885 1.4762e-05 deg
node 320.473004053128 5.7232e-05 deg
peri 7.072181891562099 7.9272e-05 deg
M 126.9990476253482 5.9885e-05 deg
tp 2458315.281497387580
(2018-Jul-15.78149739)
0.00031807 TDB
period 1942.366226778189
5.32
5.0848e-05
1.392e-07
d
yr
n .1853409491150047 4.8519e-09 deg/d
Q 3.353268334854326 5.8522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      5917 days (16.20 yr)  
   first obs. used      2002-08-16  
   last obs. used      2018-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65721  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:24:17  

Additional Information
 Earth MOID = 1.72863 au 
 Jupiter MOID = 1.97699 au 
 T_jup = 3.197 
[ 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 16.4   n/a MPO456234  

461469 (2002 QU139)          Discovered 2002-Aug-16 by NEAT at Haleakala
Reference: Last Updated: 2016-03-24

[ show close-approach data ]
Alternate Designations
 2002 QU139 = 2008 SH68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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