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JPL Small-Body Database Browser
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39493 (1981 EV10)
Classification: Main-belt Asteroid          SPK-ID: 2039493
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 .07241052791632996 4.6214e-08  
a 2.281116844602057 1.0804e-08 au
q 2.115939969645589 1.0392e-07 au
i 4.738603142962245 6.2544e-06 deg
node 237.0577995343988 6.0538e-05 deg
peri 205.1625457893812 7.6034e-05 deg
M 226.7092143501359 4.4933e-05 deg
tp 2459466.426434699579
(2021-Sep-08.92643470)
0.00015704 TDB
period 1258.402939663515
3.45
8.94e-06
2.448e-08
d
yr
n .2860768905198684 2.0324e-09 deg/d
Q 2.446293719558524 1.1586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      523  
   data-arc span      14478 days (39.64 yr)  
   first obs. used      1979-09-18  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:28:07  

Additional Information
 Earth MOID = 1.13266 au 
 Jupiter MOID = 2.70263 au 
 T_jup = 3.597 
[ 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 16.3   n/a MPO250590  

39493 (1981 EV10)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

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