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JPL Small-Body Database Browser
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46526 (1981 EN5)
Classification: Main-belt Asteroid          SPK-ID: 2046526
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09434499413250405 6.4692e-08  
a 2.481390053105488 1.558e-08 au
q 2.247283323104797 1.6275e-07 au
i 5.168543584023894 4.1428e-06 deg
node 244.6594098976616 8.4058e-05 deg
peri 230.8355028427868 9.8676e-05 deg
M 325.418554492099 5.021e-05 deg
tp 2458737.645519669554
(2019-Sep-11.14551967)
0.00019902 TDB
period 1427.713224704827
3.91
1.3447e-05
3.682e-08
d
yr
n .2521514781614693 2.3748e-09 deg/d
Q 2.715496783106179 1.705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      644  
   data-arc span      14340 days (39.26 yr)  
   first obs. used      1979-10-18  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59836  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:04  

Additional Information
 Earth MOID = 1.26819 au 
 Jupiter MOID = 2.38216 au 
 T_jup = 3.466 
[ 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 15.6   n/a MPO452806  

46526 (1981 EN5)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20020921/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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