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123477 (2000 WR161)
Classification: Main-belt Asteroid          SPK-ID: 2123477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2209169892169465 3.8698e-08  
a 2.623119062493556 1.4429e-08 au
q 2.0436274968499 1.013e-07 au
i 12.47390847115586 5.1814e-06 deg
node 201.594281365515 2.0778e-05 deg
peri 277.1325686400994 2.3691e-05 deg
M 178.8265769014223 1.243e-05 deg
tp 2458229.676414314774
(2018-Apr-21.17641431)
5.2314e-05 TDB
period 1551.763142005736
4.25
1.2804e-05
3.506e-08
d
yr
n .2319941686040312 1.9142e-09 deg/d
Q 3.202610628137211 1.7617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      823  
   data-arc span      6766 days (18.52 yr)  
   first obs. used      2000-10-31  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50924  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:01:00  

Additional Information
 Earth MOID = 1.10252 au 
 Jupiter MOID = 2.0691 au 
 T_jup = 3.336 
[ 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 15.1   n/a MPC31927  
diameter diameter 2.864 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123477 (2000 WR161)          Discovered 2000-Nov-20 by LONEOS at Anderson Mesa
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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