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249338 (2008 VT23)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249338
[ 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 .1148331924893412 6.4449e-08  
a 3.568220009851224 7.7291e-08 au
q 3.158469914615659 2.4668e-07 au
i 10.94404836548524 8.1855e-06 deg
node 79.69942157180108 3.7312e-05 deg
peri 288.2666154742725 5.2387e-05 deg
M 304.1782059442625 4.1671e-05 deg
tp 2459382.248336053128
(2021-Jun-16.74833605)		 0.00029245 TDB
period 2461.930923286061
6.74		 7.9992e-05
2.19e-07		 d
yr
n .1462266859703318 4.7511e-09 deg/d
Q 3.977970105086788 8.6167e-08 au
   Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6466 days (17.70 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:40  

Additional Information
 Earth MOID = 2.1818 au 
 Jupiter MOID = 1.5938 au 
 T_jup = 3.074 
[ 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 14.7   n/a MPO321268  
diameter diameter 7.686 km 0.622 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249338 (2008 VT23)          Discovered 2008-Nov-01 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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