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JPL Small-Body Database Browser
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441793 (2009 EL18)
Classification: Main-belt Asteroid          SPK-ID: 2441793
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .124495310630811 1.8588e-07  
a 2.776965900450971 3.5246e-08 au
q 2.431246668063158 5.0482e-07 au
i 13.31994007723128 1.0561e-05 deg
node 175.0295355952032 3.1222e-05 deg
peri 46.74328466000532 6.8068e-05 deg
M 33.06587538368433 4.7825e-05 deg
tp 2458445.249941991679
(2018-Nov-22.74994199)
0.00022435 TDB
period 1690.262853605664
4.63
3.218e-05
8.81e-08
d
yr
n .2129846249842438 4.0548e-09 deg/d
Q 3.122685132838784 3.9634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      6503 days (17.80 yr)  
   first obs. used      2000-05-04  
   last obs. used      2018-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:08:30  

Additional Information
 Earth MOID = 1.446 au 
 Jupiter MOID = 1.88884 au 
 T_jup = 3.284 
[ 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 17.2   n/a MPO437717  

441793 (2009 EL18)          Discovered 2009-Mar-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2009 EL18 = 2000 JZ91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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