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JPL Small-Body Database Browser
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71984 (2000 WM157)
Classification: Main-belt Asteroid          SPK-ID: 2071984
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2055094436051917 4.6501e-08  
a 2.23300901780105 8.1547e-09 au
q 1.774104576987381 1.0611e-07 au
i 7.103360619240282 5.0249e-06 deg
node 1.148494835958416 3.3764e-05 deg
peri 355.3890148241101 3.5339e-05 deg
M 24.58697905340659 1.1138e-05 deg
tp 2458917.259091263131
(2020-Mar-08.75909126)
3.7505e-05 TDB
period 1218.804761665949
3.34
6.6764e-06
1.828e-08
d
yr
n .2953713435677149 1.618e-09 deg/d
Q 2.691913458614719 9.8305e-09 au
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      10435 days (28.57 yr)  
   first obs. used      1990-12-11  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57477  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:30:40  

Additional Information
 Earth MOID = .770092 au 
 Jupiter MOID = 2.75195 au 
 T_jup = 3.603 
[ 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 15.4   n/a MPO436286  

71984 (2000 WM157)          Discovered 2000-Nov-30 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WM157 = 2002 JS44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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