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JPL Small-Body Database Browser
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172606 (2003 WB81)
Classification: Main-belt Asteroid          SPK-ID: 2172606
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1572076813772102 3.4903e-08  
a 2.427048240874449 1.2179e-08 au
q 2.04549761433594 8.4248e-08 au
i 2.681376518170418 7.1684e-06 deg
node 14.73301368268372 8.7614e-05 deg
peri 86.58204565656051 9.1918e-05 deg
M 106.9266289610027 2.6427e-05 deg
tp 2458590.296450315276
(2019-Apr-16.79645032)
0.00010007 TDB
period 1381.071107556927
3.78
1.0395e-05
2.846e-08
d
yr
n .2606672444526257 1.962e-09 deg/d
Q 2.808598867412957 1.4094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      7065 days (19.34 yr)  
   first obs. used      1999-10-06  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52145  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:43:09  

Additional Information
 Earth MOID = 1.06445 au 
 Jupiter MOID = 2.33578 au 
 T_jup = 3.491 
[ 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 16.7   n/a MPO469849  

172606 (2003 WB81)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2003 WB81 = 1999 TL139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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