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JPL Small-Body Database Browser
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442744 (2012 WW13)
Classification: Main-belt Asteroid          SPK-ID: 2442744
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2171738317458687 1.0028e-07  
a 2.3106770522846 3.3999e-08 au
q 1.808858462912704 2.4545e-07 au
i 3.153317875553315 9.6119e-06 deg
node 116.3420242895081 0.00010632 deg
peri 208.3933221589242 0.00010947 deg
M 10.80348569505825 2.1411e-05 deg
tp 2458561.999293032576
(2019-Mar-19.49929303)
7.5894e-05 TDB
period 1282.942829702893
3.51
2.8316e-05
7.752e-08
d
yr
n .2806048653651775 6.1932e-09 deg/d
Q 2.812495641656495 4.1383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      4539 days (12.43 yr)  
   first obs. used      2005-11-10  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64021  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:55:26  

Additional Information
 Earth MOID = .796614 au 
 Jupiter MOID = 2.51856 au 
 T_jup = 3.551 
[ 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 18.1   n/a MPO446756  

442744 (2012 WW13)          Discovered 2008-Jul-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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