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JPL Small-Body Database Browser
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447707 (2007 EN78)
Classification: Main-belt Asteroid          SPK-ID: 2447707
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0776491229107218 6.9968e-08  
a 3.046443163923459 5.7619e-08 au
q 2.809889524247438 2.1204e-07 au
i 16.44845439034627 7.2945e-06 deg
node 178.7825745483791 2.14e-05 deg
peri 227.5071929030086 5.57e-05 deg
M 231.9113017470338 4.5404e-05 deg
tp 2459291.529134817295
(2021-Mar-18.02913482)
0.00024064 TDB
period 1942.173602568137
5.32
5.51e-05
1.509e-07
d
yr
n .1853593311761481 5.2587e-09 deg/d
Q 3.282996803599481 6.2093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6269 days (17.16 yr)  
   first obs. used      2001-02-20  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56363  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:05:06  

Additional Information
 Earth MOID = 1.83899 au 
 Jupiter MOID = 2.08412 au 
 T_jup = 3.171 
[ 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 16.2   n/a MPO446777  

447707 (2007 EN78)          Discovered 2007-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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