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341843 (2008 EV5)
Classification: Aten [NEO, PHA]          SPK-ID: 2341843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08336114449822943 2.9657e-08  
a .958177267698564 3.1565e-08 au
q .8783025140310254 5.3181e-08 au
i 7.437222995596112 1.8334e-06 deg
node 93.37502609412356 1.6351e-06 deg
peri 234.9487884411268 2.1293e-05 deg
M 184.1977433784124 0.00022833 deg
tp 2459167.797390290961
(2020-Nov-14.29739029)
0.00022554 TDB
period 342.5841150286482
0.94
1.6929e-05
4.635e-08
d
yr
n 1.050836814105918 5.1927e-08 deg/d
Q 1.038052021366103 3.4197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1013  
   # delay obs. used      4  
   # Doppler obs. used      0  
   data-arc span      768 days (2.10 yr)  
   first obs. used      2008-03-04  
   last obs. used      2010-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .27032  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-15 07:41:09  

Additional Information
 Earth MOID = .0138437 au 
 Jupiter MOID = 4.05264 au 
 T_jup = 6.279 
[ 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 20.0   n/a MPO245786  
diameter diameter 0.40 km .050 Icarus 212 (2011) 649-660, "Radar observations and the shape of near-Earth ASTEROID 2008 EV5", Busch et al. Equivalent diameter. Oblate spheroid w/slight equatorial ridge
rotation period rot_per 3.725 h .001 Galad, A. et al. (2009) MPB 36, 116-118.  
pole direction pole 105/-66   10 Icarus 212 (2011) 649-660, "Radar observations and the shape of near-Earth ASTEROID 2008 EV5", Busch et al. 10 degree uncertainty in pole direction
geometric albedo albedo 0.137   0.013 EAR_A_COMPIL_5_NEOWISEDIAM_V1_0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

341843 (2008 EV5)          Discovered 2008-Mar-04 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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