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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05995431925996637 4.086e-08  
a 2.733435656932333 1.8833e-08 au
q 2.569554382880035 1.083e-07 au
i 2.413913056593477 6.9528e-06 deg
node 321.8118776962486 0.00011512 deg
peri 127.9614244441549 0.00013409 deg
M 109.4130474990549 6.9742e-05 deg
tp 2458498.818225585596
(2019-Jan-15.31822559)
0.00031739 TDB
period 1650.675517385122
4.52
1.706e-05
4.671e-08
d
yr
n .2180925301238401 2.254e-09 deg/d
Q 2.897316930984629 1.9962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      8959 days (24.53 yr)  
   first obs. used      1995-10-19  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:02  

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 16.3   n/a MPO417628  

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

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