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249774 (2000 WD18)
Classification: Main-belt Asteroid          SPK-ID: 2249774
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08396113184017098 5.2791e-08  
a 3.070250496306633 3.1614e-08 au
q 2.812468789603882 1.5712e-07 au
i 9.98378715989629 5.9056e-06 deg
node 230.5815057571935 2.7699e-05 deg
peri 217.0235632722753 4.1902e-05 deg
M 210.1469405351696 3.3577e-05 deg
tp 2459818.441522557762
(2022-Aug-26.94152256)
0.00018684 TDB
period 1964.984560024295
5.38
3.035e-05
8.309e-08
d
yr
n .1832075464224253 2.8297e-09 deg/d
Q 3.328032203009385 3.4269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      339  
   data-arc span      7550 days (20.67 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:40:39  

Additional Information
 Earth MOID = 1.83556 au 
 Jupiter MOID = 1.96319 au 
 T_jup = 3.202 
[ 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 15.3   n/a MPO437160  

249774 (2000 WD18)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 2000 WD18 = 2002 EX102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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