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344819 (2004 EN)
Classification: Main-belt Asteroid          SPK-ID: 2344819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1645651816444192 5.9245e-08  
a 2.230335633532466 1.6964e-08 au
q 1.863300044872175 1.257e-07 au
i 3.958823788627664 6.1515e-06 deg
node 297.2782903970309 9.274e-05 deg
peri 281.9436301048946 9.5366e-05 deg
M 274.7056523187814 2.3609e-05 deg
tp 2459288.751458097361
(2021-Mar-15.25145810)
8.0629e-05 TDB
period 1216.616666122882
3.33
1.388e-05
3.8e-08
d
yr
n .2959025714708061 3.3759e-09 deg/d
Q 2.597371222192757 1.9755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      5732 days (15.69 yr)  
   first obs. used      2004-03-10  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6602  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 20:08:47  

Additional Information
 Earth MOID = .860347 au 
 Jupiter MOID = 2.39566 au 
 T_jup = 3.621 
[ 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 17.2   n/a MPO455509  

344819 (2004 EN)          Discovered 2004-Mar-10 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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