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186612 (2003 EJ21)
Classification: Main-belt Asteroid          SPK-ID: 2186612
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2221065212317934 3.7935e-08  
a 2.730884529811127 1.7454e-08 au
q 2.124337267009056 1.0783e-07 au
i 8.693602352022168 5.5573e-06 deg
node 351.7660007510048 2.8379e-05 deg
peri 256.6205694868008 3.0945e-05 deg
M 274.1534273536173 1.2692e-05 deg
tp 2459593.573615068921
(2022-Jan-14.07361507)
5.9721e-05 TDB
period 1648.365182937497
4.51
1.5803e-05
4.327e-08
d
yr
n .2183982067362378 2.0938e-09 deg/d
Q 3.337431792613198 2.1331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      11302 days (30.94 yr)  
   first obs. used      1990-04-29  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60579  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:21  

Additional Information
 Earth MOID = 1.13009 au 
 Jupiter MOID = 1.80883 au 
 T_jup = 3.302 
[ 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 15.70   n/a MPCxxxxx  

186612 (2003 EJ21)          Discovered 2003-Mar-06 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2003 EJ21 = 2004 PK33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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