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437394 (2013 WE57)
Classification: Main-belt Asteroid          SPK-ID: 2437394
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178711506706817 1.7769e-07  
a 2.147265225622649 4.6871e-08 au
q 1.763524221852472 4.1853e-07 au
i 3.90236193514912 5.0346e-06 deg
node 122.4144194003361 8.108e-05 deg
peri 250.1385368206977 8.3168e-05 deg
M 58.10933913628485 2.0508e-05 deg
tp 2458814.988687211633
(2019-Nov-27.48868721)
6.1339e-05 TDB
period 1149.282948256945
3.15
3.763e-05
1.03e-07
d
yr
n .3132387899307064 1.0256e-08 deg/d
Q 2.531006229392826 5.5247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      4321 days (11.83 yr)  
   first obs. used      2007-12-30  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5966  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:38:37  

Additional Information
 Earth MOID = .768205 au 
 Jupiter MOID = 2.93598 au 
 T_jup = 3.684 
[ 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 18.0   n/a MPO440809  

437394 (2013 WE57)          Discovered 2007-Dec-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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