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173714 (2001 QR139)
Classification: Main-belt Asteroid          SPK-ID: 2173714
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3441551884313467 4.8952e-08  
a 3.137196963856909 2.1697e-08 au
q 2.057514351614485 1.4889e-07 au
i 21.03971320449127 7.0532e-06 deg
node .1809162926242148 1.5944e-05 deg
peri 62.42426859954202 2.0851e-05 deg
M 117.6797404292586 9.9712e-06 deg
tp 2458337.046778930742
(2018-Aug-06.54677893)
5.3542e-05 TDB
period 2029.603045636472
5.56
2.1055e-05
5.765e-08
d
yr
n .177374586017684 1.8401e-09 deg/d
Q 4.216879576099332 2.9164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-08-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:08:02  

Additional Information
 Earth MOID = 1.15075 au 
 Jupiter MOID = 1.80653 au 
 T_jup = 3.019 
[ 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 14.4   n/a MPO475470  

173714 (2001 QR139)          Discovered 2001-Aug-22 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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