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249289 (2008 TW53)
Classification: Main-belt Asteroid          SPK-ID: 2249289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142299098070848 6.4141e-08  
a 3.092925837229825 3.3072e-08 au
q 2.73962119780306 2.0815e-07 au
i 5.252827666314719 6.397e-06 deg
node 170.5093629172901 6.5861e-05 deg
peri 242.5994124838199 7.1699e-05 deg
M 309.716044037183 2.6099e-05 deg
tp 2458878.010629947708
(2020-Jan-29.51062995)
0.00014419 TDB
period 1986.793299537723
5.44
3.1867e-05
8.725e-08
d
yr
n .1811965039764141 2.9062e-09 deg/d
Q 3.44623047665659 3.685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6298 days (17.24 yr)  
   first obs. used      2002-08-27  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48335  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:47:07  

Additional Information
 Earth MOID = 1.75507 au 
 Jupiter MOID = 1.925 au 
 T_jup = 3.208 
[ 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 16.2   n/a MPO454847  
diameter diameter 3.822 km 1.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249289 (2008 TW53)          Discovered 2008-Oct-02 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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