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243337 (2008 TW187)
Classification: Main-belt Asteroid          SPK-ID: 2243337
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 .1923778377280662 4.8903e-08  
a 3.043181376794315 3.3542e-08 au
q 2.457740723712305 1.5445e-07 au
i 12.28284365793502 8.0275e-06 deg
node 167.441815315707 2.6614e-05 deg
peri 272.8746498658771 3.5004e-05 deg
M 38.62906777861958 2.1352e-05 deg
tp 2458792.433620598810
(2019-Nov-04.93362060)
0.00011379 TDB
period 1939.055247558581
5.31
3.2059e-05
8.777e-08
d
yr
n .1856574228368519 3.0695e-09 deg/d
Q 3.628622029876325 3.9995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      9464 days (25.91 yr)  
   first obs. used      1994-03-05  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:19:46  

Additional Information
 Earth MOID = 1.51053 au 
 Jupiter MOID = 1.81493 au 
 T_jup = 3.176 
[ 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 15.9   n/a MPO454785  
diameter diameter 4.219 km 0.955 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243337 (2008 TW187)          Discovered 2008-Oct-08 by CSS at Catalina
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2008 TW187 = 1994 EK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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