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216426 (2008 WC44)
Classification: Main-belt Asteroid          SPK-ID: 2216426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04325089480977719 5.8756e-08  
a 2.750823169757088 2.365e-08 au
q 2.631847606201626 1.5992e-07 au
i 7.075266747180145 5.9823e-06 deg
node 55.0669467509144 4.1552e-05 deg
peri 339.7541630259477 7.0965e-05 deg
M 260.9516362085054 5.8417e-05 deg
tp 2459658.997785405572
(2022-Mar-20.49778541)
0.00027213 TDB
period 1666.450574524077
4.56
2.1491e-05
5.884e-08
d
yr
n .216028009173217 2.7859e-09 deg/d
Q 2.86979873331255 2.4673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      6088 days (16.67 yr)  
   first obs. used      2003-09-26  
   last obs. used      2020-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59152  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:46  

Additional Information
 Earth MOID = 1.63899 au 
 Jupiter MOID = 2.32362 au 
 T_jup = 3.333 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.17   n/a E2021B55  

216426 (2008 WC44)          Discovered 2008-Nov-17 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2008 WC44 = 2003 UM383 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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