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186332 (2002 EL21)
Classification: Main-belt Asteroid          SPK-ID: 2186332
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09226352721624258 3.6541e-08  
a 3.073836502163418 2.6543e-08 au
q 2.790233504387783 1.0871e-07 au
i 11.62885127469029 4.6821e-06 deg
node 64.88269162146875 2.6661e-05 deg
peri 226.2150024327744 4.4666e-05 deg
M 104.4204981240924 3.3341e-05 deg
tp 2458825.543748994425
(2019-Dec-08.04374899)
0.00018345 TDB
period 1968.428173151789
5.39
2.5497e-05
6.981e-08
d
yr
n .1828870389634683 2.3689e-09 deg/d
Q 3.357439499939052 2.8992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      6865 days (18.80 yr)  
   first obs. used      2002-03-10  
   last obs. used      2020-12-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:23:51  

Additional Information
 Earth MOID = 1.78824 au 
 Jupiter MOID = 1.78591 au 
 T_jup = 3.192 
[ 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 14.95   n/a E2021B55  

186332 (2002 EL21)          Discovered 2002-Mar-10 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2002 EL21 = 2004 RZ293 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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