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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0853524922186453 5.9163e-08  
a 3.066193012940119 3.3136e-08 au
q 2.804485797662283 1.7315e-07 au
i 10.01489270031202 6.7959e-06 deg
node 230.7302445202764 2.9019e-05 deg
peri 215.4573518562326 4.4651e-05 deg
M 138.4518222662618 3.4647e-05 deg
tp 2457846.287307507457
(2017-Apr-02.78730751)
0.000188 TDB
period 1961.090615153854
5.37
3.179e-05
8.704e-08
d
yr
n .183571323639095 2.9757e-09 deg/d
Q 3.327900228217955 3.5964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      7228 days (19.79 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56456  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:19:05  

Additional Information
 Earth MOID = 1.82685 au 
 Jupiter MOID = 1.96652 au 
 T_jup = 3.203 
[ 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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