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249139 (2008 AV4)
Classification: Main-belt Asteroid          SPK-ID: 2249139
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1740893565905568 6.5566e-08  
a 3.089904046359563 4.5608e-08 au
q 2.551984639002269 2.1564e-07 au
i 15.55908599995372 8.361e-06 deg
node 300.2507257665812 3.1842e-05 deg
peri 344.9331063817073 4.1022e-05 deg
M 308.5515602667195 2.8266e-05 deg
tp 2459284.021256085510
(2021-Mar-10.52125609)
0.00015804 TDB
period 1983.882363001165
5.43
4.3924e-05
1.203e-07
d
yr
n .181462372323025 4.0176e-09 deg/d
Q 3.627823453716857 5.3548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      7503 days (20.54 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53584  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:20:02  

Additional Information
 Earth MOID = 1.53882 au 
 Jupiter MOID = 1.60632 au 
 T_jup = 3.146 
[ 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 15.1   n/a MPO470657  

249139 (2008 AV4)          Discovered 2008-Jan-07 by LUSS at Lulin
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 AV4 = 2005 SE138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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