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(2008 EA91)
Classification: Mars-crossing Asteroid          SPK-ID: 3419219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5381717901660308 8.1911e-05  
a 2.940941772414114 0.00036999 au
q 1.358209873979951 7.1327e-05 au
i 8.416421593000697 0.00077353 deg
node 239.1906454257918 0.0033017 deg
peri 330.2646882118198 0.0077575 deg
M 176.1746631147197 0.18147 deg
tp 2458298.993183595771
(2018-Jun-29.49318360)
0.7585 TDB
period 1842.163045285292
5.04
0.34763
0.0009518
d
yr
n .1954224415267475 3.6878e-05 deg/d
Q 4.523673670848277 0.00056911 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      72 days  
   first obs. used      2008-02-15  
   last obs. used      2008-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .67153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:30:37  

Additional Information
 Earth MOID = .360076 au 
 Jupiter MOID = .606738 au 
 T_jup = 3.023 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.2   n/a MPO141916  

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