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227451 (2005 WA68)
Classification: Main-belt Asteroid          SPK-ID: 2227451
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004260003238861479 4.9705e-08  
a 2.610700886345556 2.0315e-08 au
q 2.599579292114026 1.2346e-07 au
i 1.475452349304864 4.7545e-06 deg
node 116.1510229528492 0.00020851 deg
peri 54.01103258710447 0.0006327 deg
M 107.3584203029519 0.00059648 deg
tp 2458741.018834949760
(2019-Sep-14.51883495)
0.0025529 TDB
period 1540.756830729358
4.22
1.7984e-05
4.924e-08
d
yr
n .2336514061271982 2.7272e-09 deg/d
Q 2.621822480577087 2.0402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      6233 days (17.07 yr)  
   first obs. used      2003-05-29  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:49  

Additional Information
 Earth MOID = 1.59345 au 
 Jupiter MOID = 2.33265 au 
 T_jup = 3.409 
[ 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 16.70   n/a E2021B55  

227451 (2005 WA68)          Discovered 2005-Nov-22 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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