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213549 (2002 JE117)
Classification: Main-belt Asteroid          SPK-ID: 2213549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1732766546279489 3.8109e-08  
a 2.339186039432624 1.3597e-08 au
q 1.933859707967337 8.8934e-08 au
i 7.685233147496755 4.3636e-06 deg
node 86.52990524456689 3.8409e-05 deg
peri 181.0614837352122 4.1483e-05 deg
M 47.41766900847712 1.8351e-05 deg
tp 2459028.379233299239
(2020-Jun-27.87923330)
6.5714e-05 TDB
period 1306.759216721437
3.58
1.1394e-05
3.12e-08
d
yr
n .2754906913174207 2.402e-09 deg/d
Q 2.74451237089791 1.5953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      6644 days (18.19 yr)  
   first obs. used      2002-03-20  
   last obs. used      2020-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:08  

Additional Information
 Earth MOID = .916102 au 
 Jupiter MOID = 2.34279 au 
 T_jup = 3.533 
[ 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 16.81   n/a E2021B55  

213549 (2002 JE117)          Discovered 2002-May-04 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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