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123494 (2000 WJ173)
Classification: Main-belt Asteroid          SPK-ID: 2123494
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2014092442523425 2.951e-08  
a 2.801135820881766 1.3424e-08 au
q 2.236961172149804 8.2252e-08 au
i 6.800567920166071 4.3823e-06 deg
node 283.1216751438375 4.3324e-05 deg
peri 151.7160726054782 4.6916e-05 deg
M 76.77846043966787 1.6537e-05 deg
tp 2458635.295116321450
(2019-May-31.79511632)
7.7931e-05 TDB
period 1712.378150999646
4.69
1.231e-05
3.37e-08
d
yr
n .2102339368146227 1.5113e-09 deg/d
Q 3.365310469613727 1.6128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1266  
   data-arc span      7534 days (20.63 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:01:13  

Additional Information
 Earth MOID = 1.2549 au 
 Jupiter MOID = 1.91468 au 
 T_jup = 3.285 
[ 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 14.7   n/a MPO338120  
diameter diameter 6.258 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123494 (2000 WJ173)          Discovered 2000-Nov-25 by LONEOS at Anderson Mesa
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2000 WJ173 = 1999 RB140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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