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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1004551457010715 1.4398e-07  
a 3.045803333904805 5.2832e-08 au
q 2.739836716220589 4.5116e-07 au
i 12.04206127082982 1.4762e-05 deg
node 320.4851693207656 5.7246e-05 deg
peri 6.900904122923643 7.9421e-05 deg
M 53.03248697352384 5.9489e-05 deg
tp 2458314.483751065743
(2018-Jul-14.98375107)
0.00031887 TDB
period 1941.561776420889
5.32
5.0517e-05
1.383e-07
d
yr
n .1854177417231764 4.8243e-09 deg/d
Q 3.351769951589022 5.8139e-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 = 1.72751 au 
 Jupiter MOID = 1.97518 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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