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58113 (1981 EV4)
Classification: Main-belt Asteroid          SPK-ID: 2058113
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1171326919027528 4.2856e-08  
a 2.234421402260161 1.0738e-08 au
q 1.972697608568305 9.5106e-08 au
i 5.107290564129363 6.0722e-06 deg
node 291.9901604617503 4.351e-05 deg
peri 276.297063053493 5.206e-05 deg
M 242.4782518818446 3.1051e-05 deg
tp 2459398.755509754880
(2021-Jul-03.25550976)
0.00010598 TDB
period 1219.961290633729
3.34
8.7945e-06
2.408e-08
d
yr
n .2950913301626089 2.1273e-09 deg/d
Q 2.496145195952018 1.1996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      14508 days (39.72 yr)  
   first obs. used      1981-02-02  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6287  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:52:18  

Additional Information
 Earth MOID = .975461 au 
 Jupiter MOID = 2.49435 au 
 T_jup = 3.625 
[ 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 17.0   n/a MPO449374  

58113 (1981 EV4)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 EV4 = 1994 AM6 = 2001 FY107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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