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277497 (2005 WM118)
Classification: Main-belt Asteroid          SPK-ID: 2277497
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .14697825866289 3.8355e-08  
a 2.547584834948474 1.7361e-08 au
q 2.173145252111762 9.3363e-08 au
i 4.490996097034591 4.2683e-06 deg
node 317.118042939202 8.8189e-05 deg
peri 156.9075496670768 9.1593e-05 deg
M 170.2180533804802 2.7226e-05 deg
tp 2458298.245504244597
(2018-Jun-28.74550424)
0.00011011 TDB
period 1485.222122161435
4.07
1.5182e-05
4.157e-08
d
yr
n .2423879867047053 2.4777e-09 deg/d
Q 2.922024417785187 1.9913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      6388 days (17.49 yr)  
   first obs. used      2001-11-11  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52115  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:12:25  

Additional Information
 Earth MOID = 1.19038 au 
 Jupiter MOID = 2.17285 au 
 T_jup = 3.422 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO433795  

277497 (2005 WM118)          Discovered 2005-Nov-28 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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