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JPL Small-Body Database Browser
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442508 (2011 WA42)
Classification: Main-belt Asteroid          SPK-ID: 2442508
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776913671240445 7.0524e-08  
a 2.588371728418219 2.7155e-08 au
q 2.128440417370359 1.9547e-07 au
i 13.68789332853998 6.7794e-06 deg
node 200.1630848185686 1.6227e-05 deg
peri 184.1699092523973 2.066e-05 deg
M 306.621931356908 1.0937e-05 deg
tp 2458826.027109271679
(2019-Dec-08.52710927)
4.6788e-05 TDB
period 1521.03216548866
4.16
2.3936e-05
6.553e-08
d
yr
n .2366813852909832 3.7246e-09 deg/d
Q 3.048303039466078 3.198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      5319 days (14.56 yr)  
   first obs. used      2005-04-04  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51198  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:57  

Additional Information
 Earth MOID = 1.13142 au 
 Jupiter MOID = 2.40369 au 
 T_jup = 3.359 
[ 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 16.5   n/a MPO456095  

442508 (2011 WA42)          Discovered 2011-Oct-27 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 WA42 = 2014 KK77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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