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146227 (2000 WA71)
Classification: Outer Main-belt Asteroid          SPK-ID: 2146227
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06826861000133042 5.1629e-08  
a 3.221465114308669 3.4027e-08 au
q 3.001540168787039 1.6382e-07 au
i 10.87809891565166 7.1609e-06 deg
node 18.54282927855001 2.4643e-05 deg
peri 49.12293639755602 5.3374e-05 deg
M 121.1913813765708 4.701e-05 deg
tp 2458289.535672168612
(2018-Jun-20.03567217)
0.00027472 TDB
period 2111.925411791539
5.78
3.3461e-05
9.161e-08
d
yr
n .1704605655057738 2.7007e-09 deg/d
Q 3.441390059830299 3.635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1997-05-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:53:07  

Additional Information
 Earth MOID = 2.02711 au 
 Jupiter MOID = 1.83137 au 
 T_jup = 3.157 
[ 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 14.8   n/a MPO338248  

146227 (2000 WA71)          Discovered 2000-Nov-19 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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