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JPL Small-Body Database Browser
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447288 (2005 WE18)
Classification: Main-belt Asteroid          SPK-ID: 2447288
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192029898430794 2.2447e-07  
a 3.084741146583327 1.2797e-07 au
q 2.717030779018625 7.946e-07 au
i 8.661919715239135 1.0395e-05 deg
node 247.9453051567167 6.1916e-05 deg
peri 145.1640736489667 9.5267e-05 deg
M 204.5671295343784 9.0802e-05 deg
tp 2459454.911102750105
(2021-Aug-28.41110275)
0.00054859 TDB
period 1978.912157181511
5.42
0.00012314
3.371e-07
d
yr
n .1819181304705987 1.132e-08 deg/d
Q 3.452451514148029 1.4323e-07 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      4965 days (13.59 yr)  
   first obs. used      2005-10-27  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53819  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:49:00  

Additional Information
 Earth MOID = 1.72882 au 
 Jupiter MOID = 1.97147 au 
 T_jup = 3.198 
[ 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 16.7   n/a E2015T07  

447288 (2005 WE18)          Discovered 2005-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

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