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305572 (2008 WE140)
Classification: Main-belt Asteroid          SPK-ID: 2305572
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09979382566133538 5.1884e-08  
a 2.772229381357695 3.892e-08 au
q 2.495578005781254 1.5475e-07 au
i 3.942792112146593 6.2791e-06 deg
node 312.2855500204125 8.5449e-05 deg
peri 274.8459235321951 9.1969e-05 deg
M 105.8621628727277 3.6813e-05 deg
tp 2458504.729784477448
(2019-Jan-21.22978448)
0.00016757 TDB
period 1685.940214566486
4.62
3.5504e-05
9.72e-08
d
yr
n .2135307034553231 4.4967e-09 deg/d
Q 3.048880756934136 4.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      7031 days (19.25 yr)  
   first obs. used      2000-04-05  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53048  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:52  

Additional Information
 Earth MOID = 1.48971 au 
 Jupiter MOID = 1.96054 au 
 T_jup = 3.326 
[ 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 16.1   n/a MPO437357  

305572 (2008 WE140)          Discovered 2008-Nov-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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