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213234 (2000 WD139)
Classification: Main-belt Asteroid          SPK-ID: 2213234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1589430505485855 4.8292e-08  
a 3.097527732830241 3.3024e-08 au
q 2.605197225815358 1.6647e-07 au
i 11.73007097095877 6.492e-06 deg
node 61.24194544091867 2.3021e-05 deg
peri 266.5644022673343 3.2093e-05 deg
M 321.046751318108 2.4223e-05 deg
tp 2459415.957896063570
(2021-Jul-20.45789606)
0.00013468 TDB
period 1991.229106879149
5.45
3.1844e-05
8.718e-08
d
yr
n .1807928574146988 2.8913e-09 deg/d
Q 3.589858239845124 3.8273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      8092 days (22.15 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:53  

Additional Information
 Earth MOID = 1.62574 au 
 Jupiter MOID = 1.87619 au 
 T_jup = 3.172 
[ 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 14.83   n/a E2021B55  
diameter diameter 4.050 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.171   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213234 (2000 WD139)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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