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413670 (2005 WS21)
Classification: Main-belt Asteroid          SPK-ID: 2413670
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 .039127734898947 5.5193e-08  
a 2.762508371914055 4.0642e-08 au
q 2.65441767668168 1.5271e-07 au
i 3.250718117907291 5.9933e-06 deg
node 281.3981936850516 0.00011957 deg
peri 356.6261284076688 0.00015292 deg
M 203.7179486428563 9.2247e-05 deg
tp 2459728.548704650501
(2022-May-29.04870465)
0.00042386 TDB
period 1677.08019825784
4.59
3.701e-05
1.013e-07
d
yr
n .2146587863680998 4.7371e-09 deg/d
Q 2.87059906714643 4.2232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      6577 days (18.01 yr)  
   first obs. used      2002-01-21  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 07:01:18  

Additional Information
 Earth MOID = 1.63798 au 
 Jupiter MOID = 2.17848 au 
 T_jup = 3.337 
[ 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 MPO455946  

413670 (2005 WS21)          Discovered 2005-Nov-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-11-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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