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39123 (2000 WR42)
Classification: Main-belt Asteroid          SPK-ID: 2039123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192737886816426 4.0046e-08  
a 2.634962333544807 1.1585e-08 au
q 2.320680392989496 1.0878e-07 au
i 2.372954655084522 3.6504e-06 deg
node 147.7356526865893 0.00010332 deg
peri 214.2375021309562 0.00010465 deg
M 248.0512382306771 1.8607e-05 deg
tp 2459486.321619683375
(2021-Sep-28.82161968)
8.1851e-05 TDB
period 1562.284212186271
4.28
1.0304e-05
2.821e-08
d
yr
n .2304318236028344 1.5198e-09 deg/d
Q 2.949244274100118 1.2967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1221  
   data-arc span      10067 days (27.56 yr)  
   first obs. used      1992-12-25  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:22:42  

Additional Information
 Earth MOID = 1.31817 au 
 Jupiter MOID = 2.49656 au 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO337575  

39123 (2000 WR42)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 WR42 = 1998 FV50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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