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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205900770446575 4.7103e-08  
a 2.233719637224058 8.1941e-09 au
q 1.77379504295798 1.0744e-07 au
i 7.103456639574286 5.1373e-06 deg
node 1.183425053910044 3.3756e-05 deg
peri 355.3111450099455 3.5331e-05 deg
M 266.5311889473913 1.0779e-05 deg
tp 2458917.096156231602
(2020-Mar-08.59615623)
3.726e-05 TDB
period 1219.386605647809
3.34
6.7097e-06
1.837e-08
d
yr
n .2952304038215567 1.6245e-09 deg/d
Q 2.693644231490135 9.8813e-09 au
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      10388 days (28.44 yr)  
   first obs. used      1990-12-11  
   last obs. used      2019-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56623  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:37:21  

Additional Information
 Earth MOID = .768886 au 
 Jupiter MOID = 2.74655 au 
 T_jup = 3.602 
[ 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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