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71928 (2000 WB61)
Classification: Main-belt Asteroid          SPK-ID: 2071928
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1000251855886393 3.5054e-08  
a 2.280976788697766 8.8531e-09 au
q 2.052821662084893 7.9277e-08 au
i 4.949209275411005 4.0614e-06 deg
node 221.9206770756893 3.8998e-05 deg
peri 330.3845428551476 4.3749e-05 deg
M 139.5019801842844 1.8506e-05 deg
tp 2458512.906848298646
(2019-Jan-29.40684830)
6.4764e-05 TDB
period 1258.287046396078
3.45
7.3257e-06
2.006e-08
d
yr
n .2861032393451827 1.6657e-09 deg/d
Q 2.509131915310638 9.7387e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1306  
   data-arc span      16530 days (45.26 yr)  
   first obs. used      1974-04-24  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53477  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:33:27  

Additional Information
 Earth MOID = 1.0534 au 
 Jupiter MOID = 2.45573 au 
 T_jup = 3.594 
[ 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 15.2   n/a MPO319907  

71928 (2000 WB61)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WB61 = 1974 HJ3 = 1999 RO126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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