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227783 (2006 WK178)
Classification: Main-belt Asteroid          SPK-ID: 2227783
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1915392515133869 7.5157e-08  
a 2.608078445834141 2.1806e-08 au
q 2.108529052430872 2.0085e-07 au
i 3.676325768317032 8.5256e-06 deg
node 230.4372452887774 7.0959e-05 deg
peri 4.453124431308207 7.3747e-05 deg
M 37.03313665655075 1.4643e-05 deg
tp 2459042.241371099693
(2020-Jul-11.74137110)
6.3065e-05 TDB
period 1538.435886014334
4.21
1.9294e-05
5.282e-08
d
yr
n .2340039018022788 2.9347e-09 deg/d
Q 3.107627839237409 2.5982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      8648 days (23.68 yr)  
   first obs. used      1996-10-06  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:09  

Additional Information
 Earth MOID = 1.09587 au 
 Jupiter MOID = 1.89402 au 
 T_jup = 3.382 
[ 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 16.58   n/a E2021B55  

227783 (2006 WK178)          Discovered 2006-Nov-23 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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