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JPL Small-Body Database Browser
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71978 (2000 WJ143)
Classification: Main-belt Asteroid          SPK-ID: 2071978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263080396785097 3.6758e-08  
a 2.311328980254901 1.0354e-08 au
q 2.019389547706776 8.511e-08 au
i 8.018013910280361 3.9044e-06 deg
node 156.8425794574915 2.824e-05 deg
peri 262.4862307740155 3.2538e-05 deg
M 204.9065125947742 1.6186e-05 deg
tp 2459553.445253810183
(2021-Dec-04.94525381)
5.9232e-05 TDB
period 1283.485816858089
3.51
8.6242e-06
2.361e-08
d
yr
n .2804861536228445 1.8847e-09 deg/d
Q 2.603268412803027 1.1662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      584  
   data-arc span      10292 days (28.18 yr)  
   first obs. used      1991-02-22  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59497  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:34:22  

Additional Information
 Earth MOID = 1.04976 au 
 Jupiter MOID = 2.71035 au 
 T_jup = 3.561 
[ 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 MPO426433  

71978 (2000 WJ143)          Discovered 2000-Nov-20 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WJ143 = 1998 FC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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