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71944 (2000 WB87)
Classification: Main-belt Asteroid          SPK-ID: 2071944
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08710411795846425 3.9824e-08  
a 2.269280543060896 1.0765e-08 au
q 2.071616862957272 9.024e-08 au
i 7.922517123854359 5.6411e-06 deg
node 61.88018492698718 3.1072e-05 deg
peri 52.95796359012789 5.1946e-05 deg
M 104.3667069596807 3.8272e-05 deg
tp 2458238.515319765092
(2018-Apr-30.01531977)
0.00013282 TDB
period 1248.6212191682
3.42
8.885e-06
2.433e-08
d
yr
n .2883180218896352 2.0516e-09 deg/d
Q 2.46694422316452 1.1703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      9285 days (25.42 yr)  
   first obs. used      1993-12-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52451  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:37:43  

Additional Information
 Earth MOID = 1.09899 au 
 Jupiter MOID = 2.62289 au 
 T_jup = 3.596 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO337803  
diameter diameter 3.561 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71944 (2000 WB87)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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