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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1166726860616027 2.2457e-07  
a 3.087625315273064 1.2955e-07 au
q 2.727383776188353 7.9637e-07 au
i 8.643532946307372 1.0364e-05 deg
node 247.8888426511039 6.2129e-05 deg
peri 145.2974986119545 9.7074e-05 deg
M 276.9486097205714 9.7231e-05 deg
tp 2459457.672104092974
(2021-Aug-31.17210409)
0.00056191 TDB
period 1981.688168250169
5.43
0.00012472
3.415e-07
d
yr
n .1816632938359218 1.1433e-08 deg/d
Q 3.447866854357775 1.4466e-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 = 1.73974 au 
 Jupiter MOID = 1.97493 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 16.6   n/a MPO477128  

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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