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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897288288398786 1.5605e-07  
a 2.536840285712444 1.8203e-08 au
q 2.055528549350399 4.0161e-07 au
i 12.14875217511467 1.0029e-05 deg
node 350.9805153166012 2.4629e-05 deg
peri 330.4447089972916 2.8307e-05 deg
M 231.2901219895986 1.9384e-05 deg
tp 2459528.151884403549
(2021-Nov-09.65188440)
8.2791e-05 TDB
period 1475.836053313071
4.04
1.5885e-05
4.349e-08
d
yr
n .2439295334951631 2.6254e-09 deg/d
Q 3.018152022074489 2.1656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      7267 days (19.90 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:16:35  

Additional Information
 Earth MOID = 1.05293 au 
 Jupiter MOID = 2.36276 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 15.6   n/a MPO268043  

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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