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JPL Small-Body Database Browser
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379657 (2011 EN42)
Classification: Main-belt Asteroid          SPK-ID: 2379657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07338074919302356 5.9472e-08  
a 2.671474883531802 4.6205e-08 au
q 2.475440055127893 1.6512e-07 au
i 8.977878283929675 7.0459e-06 deg
node 146.0619285997842 4.177e-05 deg
peri 176.1671606876245 6.5971e-05 deg
M 166.6609222286809 4.9593e-05 deg
tp 2457862.160080396738
(2017-Apr-18.66008040)
0.00022456 TDB
period 1594.869196106201
4.37
4.1376e-05
1.133e-07
d
yr
n .2257238404747695 5.856e-09 deg/d
Q 2.867509711935711 4.9595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      3847 days (10.53 yr)  
   first obs. used      2007-03-16  
   last obs. used      2017-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6017  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-09 19:32:06  

Additional Information
 Earth MOID = 1.46218 au 
 Jupiter MOID = 2.3976 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO326790  

379657 (2011 EN42)          Discovered 2007-Mar-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

Alternate Designations
 2011 EN42 = 2008 PD18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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