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120210 (2004 EN39)
Classification: Main-belt Asteroid          SPK-ID: 2120210
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898538230962586 1.5435e-07  
a 2.536479114961831 1.7284e-08 au
q 2.054918857782513 3.9664e-07 au
i 12.14956951958636 1.0016e-05 deg
node 350.9819289891864 2.3246e-05 deg
peri 330.4804728151099 2.6946e-05 deg
M 280.0506504853034 1.9667e-05 deg
tp 2459528.185931899989
(2021-Nov-09.68593190)
8.2646e-05 TDB
period 1475.520891665428
4.04
1.5081e-05
4.129e-08
d
yr
n .2439816352540195 2.4938e-09 deg/d
Q 3.018039372141149 2.0565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      7377 days (20.20 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:45  

Additional Information
 Earth MOID = 1.0504 au 
 Jupiter MOID = 2.3631 au 
 T_jup = 3.392 
[ 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 15.58   n/a E2021B55  

120210 (2004 EN39)          Discovered 2004-Mar-15 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2004 EN39 = 2004 EZ70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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