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120545 (1994 WS)
Classification: Main-belt Asteroid          SPK-ID: 2120545
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2181782229645285 3.2805e-08  
a 2.218759123355918 6.7426e-09 au
q 1.734674200635789 7.4598e-08 au
i 1.983084671525737 3.9831e-06 deg
node 49.42156931564664 9.9571e-05 deg
peri 297.9518192747632 0.00010001 deg
M 315.8016701012849 8.3156e-06 deg
tp 2459148.706420941679
(2020-Oct-26.20642094)
2.7919e-05 TDB
period 1207.156733326151
3.31
5.5027e-06
1.507e-08
d
yr
n .2982214239969243 1.3594e-09 deg/d
Q 2.702844046076048 8.2137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      10450 days (28.61 yr)  
   first obs. used      1991-12-27  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:09:47  

Additional Information
 Earth MOID = .729069 au 
 Jupiter MOID = 2.71716 au 
 T_jup = 3.619 
[ 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 16.1   n/a MPO469250  
diameter diameter 3.126 km 1.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.079   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

120545 (1994 WS)          Discovered 1994-Nov-25 by Kobayashi, T. at Oizumi
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1994 WS = 2002 AL172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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