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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145838878344999 6.4113e-08  
a 3.094201772672745 3.3123e-08 au
q 2.739656103815501 2.0817e-07 au
i 5.252179347983366 6.3959e-06 deg
node 170.5012301825124 6.5867e-05 deg
peri 242.5313880059428 7.167e-05 deg
M 22.24349586788234 2.6055e-05 deg
tp 2458877.665060700059
(2020-Jan-29.16506070)		 0.00014377 TDB
period 1988.022854439411
5.44		 3.1923e-05
8.74e-08		 d
yr
n .1810844373323434 2.9078e-09 deg/d
Q 3.448747441529989 3.6919e-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 = 1.75553 au 
 Jupiter MOID = 1.92324 au 
 T_jup = 3.207 
[ 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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