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JPL Small-Body Database Browser
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442535 (2011 WA138)
Classification: Main-belt Asteroid          SPK-ID: 2442535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03561123352995351 1.3097e-07  
a 2.757131271658162 7.3203e-08 au
q 2.658946426070405 3.2402e-07 au
i 3.171946611208613 1.1176e-05 deg
node 345.3091255626999 0.00014092 deg
peri 152.4139083644413 0.0002525 deg
M 142.7390339366302 0.00022442 deg
tp 2457937.482723176744
(2017-Jul-02.98272318)
0.0010197 TDB
period 1672.186038209691
4.58
6.6596e-05
1.823e-07
d
yr
n .215287050468039 8.5739e-09 deg/d
Q 2.855316117245918 7.581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      5614 days (15.37 yr)  
   first obs. used      2004-03-15  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57076  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:22  

Additional Information
 Earth MOID = 1.6728 au 
 Jupiter MOID = 2.13612 au 
 T_jup = 3.340 
[ 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 17.5   n/a MPO349190  

442535 (2011 WA138)          Discovered 2007-Dec-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 WA138 = 2013 CV134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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