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120611 (1995 WB17)
Classification: Main-belt Asteroid          SPK-ID: 2120611
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05995431964421592 4.0332e-08  
a 2.733435656773197 1.8705e-08 au
q 2.569554381680119 1.0644e-07 au
i 2.41391205605906 6.6181e-06 deg
node 321.8118761433139 0.00011507 deg
peri 127.9614263810305 0.00013373 deg
M 109.4130471836855 6.9267e-05 deg
tp 2458498.818227075441
(2019-Jan-15.31822708)		 0.00031513 TDB
period 1650.675517240973
4.52		 1.6943e-05
4.639e-08		 d
yr
n .2180925301428855 2.2386e-09 deg/d
Q 2.897316931866274 1.9826e-08 au
   Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      8986 days (24.60 yr)  
   first obs. used      1995-10-19  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60003  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:55:59  

Additional Information
 Earth MOID = 1.58697 au 
 Jupiter MOID = 2.20948 au 
 T_jup = 3.349 
[ 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 16.36   n/a E2021B55  

120611 (1995 WB17)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1995 WB17 = 2002 GR130 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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