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JPL Small-Body Database Browser
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447307 (2005 WR144)
Classification: Main-belt Asteroid          SPK-ID: 2447307
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2631327897288854 1.0147e-07  
a 2.985443458842693 5.3219e-08 au
q 2.199875392939562 3.1978e-07 au
i 3.861988705597782 2.5651e-05 deg
node 40.99516085284751 0.0001168 deg
peri 294.5635326184853 0.00013822 deg
M 357.91332953503 5.9425e-05 deg
tp 2459011.421016692163
(2020-Jun-10.92101669)
0.000311 TDB
period 1884.133635463711
5.16
5.0381e-05
1.379e-07
d
yr
n .1910692496667834 5.1091e-09 deg/d
Q 3.771011524745824 6.7223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      92  
   data-arc span      4965 days (13.59 yr)  
   first obs. used      2005-10-28  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49636  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 11:08:54  

Additional Information
 Earth MOID = 1.19383 au 
 Jupiter MOID = 1.6364 au 
 T_jup = 3.201 
[ 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 16.9   n/a MPO477128  

447307 (2005 WR144)          Discovered 2005-Oct-28 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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