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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172942043366386 6.5206e-08  
a 2.311195573712292 2.4067e-08 au
q 1.808986170456119 1.4929e-07 au
i 3.153425329492643 7.3586e-06 deg
node 116.3394402134881 0.00010145 deg
peri 208.4517282088782 0.00010473 deg
M 122.9605433148685 2.1855e-05 deg
tp 2458562.154305479265
(2019-Mar-19.65430548)
7.4369e-05 TDB
period 1283.374697063352
3.51
2.0046e-05
5.488e-08
d
yr
n .2805104392534468 4.3815e-09 deg/d
Q 2.813404976968466 2.9297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      5130 days (14.05 yr)  
   first obs. used      2005-11-10  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60788  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:11:41  

Additional Information
 Earth MOID = .797638 au 
 Jupiter MOID = 2.52079 au 
 T_jup = 3.550 
[ 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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