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437393 (2013 WA57)
Classification: Inner Main-belt Asteroid          SPK-ID: 2437393
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02917190535453509 6.3491e-08  
a 1.905781139865367 1.5893e-08 au
q 1.850185872826757 1.1308e-07 au
i 22.18653096080743 7.196e-06 deg
node 63.39276680154455 1.457e-05 deg
peri 93.33922167946628 0.00014569 deg
M 76.28426152702981 0.00013913 deg
tp 2458796.870633765418
(2019-Nov-09.37063377)
0.0003722 TDB
period 960.9658712954167
2.63
1.2021e-05
3.291e-08
d
yr
n .3746230857446654 4.6863e-09 deg/d
Q 1.961376406903978 1.6357e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      5846 days (16.01 yr)  
   first obs. used      2004-04-25  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66453  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:41:07  

Additional Information
 Earth MOID = .884911 au 
 Jupiter MOID = 3.07853 au 
 T_jup = 3.851 
[ 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 17.8   n/a MPO397544  

437393 (2013 WA57)          Discovered 2012-Mar-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-06-04

Alternate Designations
 2013 WA57 = 2012 HT82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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