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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1922809607396471 5.1098e-08  
a 3.042853581220919 4.1792e-08 au
q 2.457770771233685 1.6215e-07 au
i 12.28261325910091 8.8995e-06 deg
node 167.4529460950085 2.7888e-05 deg
peri 272.9371216442236 3.8458e-05 deg
M 324.3114963587935 2.6657e-05 deg
tp 2458792.696665142521
(2019-Nov-05.19666514)
0.0001458 TDB
period 1938.741958668698
5.31
3.9942e-05
1.094e-07
d
yr
n .1856874239453744 3.8255e-09 deg/d
Q 3.627936391208154 4.9828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      8959 days (24.53 yr)  
   first obs. used      1994-03-05  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67993  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:35  

Additional Information
 Earth MOID = 1.51047 au 
 Jupiter MOID = 1.81585 au 
 T_jup = 3.177 
[ 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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