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JPL Small-Body Database Browser
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249351 (2008 WC140)
Classification: Main-belt Asteroid          SPK-ID: 2249351
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 .07330270951614408 6.2831e-08  
a 3.155371273073876 5.7661e-08 au
q 2.924074009228156 2.2252e-07 au
i 14.87065793369922 7.6429e-06 deg
node 303.699060406261 3.067e-05 deg
peri 166.7030268982559 6.8975e-05 deg
M 328.2477966718973 6.1396e-05 deg
tp 2458781.069956767168
(2019-Oct-24.56995677)
0.00034875 TDB
period 2047.265311464124
5.61
5.6117e-05
1.536e-07
d
yr
n .175844331452352 4.82e-09 deg/d
Q 3.386668536919596 6.1887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      6277 days (17.19 yr)  
   first obs. used      2001-10-15  
   last obs. used      2018-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:05:47  

Additional Information
 Earth MOID = 1.94252 au 
 Jupiter MOID = 1.71944 au 
 T_jup = 3.150 
[ 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 15.1   n/a MPO338751  
diameter diameter 7.812 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249351 (2008 WC140)          Discovered 2008-Nov-17 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 WC140 = 2001 TY118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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