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187450 (2005 WK155)
Classification: Main-belt Asteroid          SPK-ID: 2187450
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05944050947850749 4.3544e-08  
a 3.126182811799153 2.9671e-08 au
q 2.940360912742858 1.294e-07 au
i 10.09669371421034 4.924e-06 deg
node 132.3705754774947 2.5702e-05 deg
peri 103.2150914488437 5.9416e-05 deg
M 87.07799215085686 4.995e-05 deg
tp 2458712.155963058584
(2019-Aug-16.65596306)
0.00028266 TDB
period 2018.924058266538
5.53
2.8743e-05
7.869e-08
d
yr
n .1783127991000803 2.5386e-09 deg/d
Q 3.312004710855448 3.1435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      6798 days (18.61 yr)  
   first obs. used      2002-03-11  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54413  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:50:51  

Additional Information
 Earth MOID = 1.9482 au 
 Jupiter MOID = 1.77405 au 
 T_jup = 3.188 
[ 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 15.24   n/a E2021B55  

187450 (2005 WK155)          Discovered 2005-Nov-29 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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