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385486 (2003 WP178)
Classification: Main-belt Asteroid          SPK-ID: 2385486
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168390333310982 1.6051e-07  
a 2.166367508231115 1.5227e-08 au
q 1.801572161445996 3.4091e-07 au
i .4529832263309999 8.7199e-06 deg
node 189.4101031397452 0.0010736 deg
peri 216.7454385056718 0.0010769 deg
M 126.7179857340979 5.2599e-05 deg
tp 2458790.548587536874
(2019-Nov-03.04858754)
0.00017281 TDB
period 1164.653207133589
3.19
1.228e-05
3.362e-08
d
yr
n .3091048887299437 3.259e-09 deg/d
Q 2.531162855016234 1.7792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      5901 days (16.16 yr)  
   first obs. used      2003-10-02  
   last obs. used      2019-11-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47823  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:33  

Additional Information
 Earth MOID = .810153 au 
 Jupiter MOID = 2.84292 au 
 T_jup = 3.674 
[ 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 18.7   n/a MPO503466  

385486 (2003 WP178)          Discovered 2003-Nov-20 by Buie, M. W. at Kitt Peak
Reference: Last Updated: 2014-02-19

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