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259109 (2002 WP18)
Classification: Main-belt Asteroid          SPK-ID: 2259109
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187282872512139 5.2956e-08  
a 2.48570278907365 1.8731e-08 au
q 2.19057955431137 1.2731e-07 au
i 9.335736805697286 3.5977e-06 deg
node 162.4048681259088 3.7321e-05 deg
peri 290.5861673297237 4.7124e-05 deg
M 140.2172435298833 3.6254e-05 deg
tp 2458442.966264785534
(2018-Nov-20.46626479)
0.00013993 TDB
period 1431.436958995927
3.92
1.618e-05
4.43e-08
d
yr
n .2514955323303373 2.8428e-09 deg/d
Q 2.780826023835929 2.0955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      6469 days (17.71 yr)  
   first obs. used      2002-10-31  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:12:21  

Additional Information
 Earth MOID = 1.22733 au 
 Jupiter MOID = 2.39361 au 
 T_jup = 3.448 
[ 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 16.2   n/a MPO427453  

259109 (2002 WP18)          Discovered 2002-Nov-30 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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