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123357 (2000 WE18)
Classification: Main-belt Asteroid          SPK-ID: 2123357
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129144843813805 3.5376e-08  
a 2.752388936821525 1.3855e-08 au
q 2.396932097460864 9.6514e-08 au
i 7.363625893566115 5.1382e-06 deg
node 227.6389503031011 4.0732e-05 deg
peri 233.807673815518 5.0258e-05 deg
M 67.19865136013094 2.7155e-05 deg
tp 2458689.169844548147
(2019-Jul-24.66984455)
0.00012577 TDB
period 1667.873591123344
4.57
1.2594e-05
3.448e-08
d
yr
n .215843695778847 1.6298e-09 deg/d
Q 3.107845776182186 1.5645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      7097 days (19.43 yr)  
   first obs. used      2000-11-20  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:59:17  

Additional Information
 Earth MOID = 1.42238 au 
 Jupiter MOID = 2.09889 au 
 T_jup = 3.321 
[ 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 15.2   n/a MPO268049  
diameter diameter 6.031 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123357 (2000 WE18)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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