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379646 (2011 EL18)
Classification: Main-belt Asteroid          SPK-ID: 2379646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1418195219894992 7.91e-08  
a 2.439155878771024 2.7707e-08 au
q 2.093235957985841 1.8127e-07 au
i 3.144127135777363 6.6034e-06 deg
node 68.38455074211709 0.00014048 deg
peri 72.06374947455402 0.00014485 deg
M 215.2372723544789 3.878e-05 deg
tp 2459760.015364686777
(2022-Jun-29.51536469)
0.0001566 TDB
period 1391.418458074846
3.81
2.3709e-05
6.491e-08
d
yr
n .2587287799085925 4.4085e-09 deg/d
Q 2.785075799556208 3.1637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      7908 days (21.65 yr)  
   first obs. used      1998-11-23  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .69457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:43:54  

Additional Information
 Earth MOID = 1.10877 au 
 Jupiter MOID = 2.23418 au 
 T_jup = 3.487 
[ 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 18.12   n/a E2021B25  

379646 (2011 EL18)          Discovered 2006-Nov-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1960-May-24 18:50 00:21 Psych 0.0257583866206761 0.0257177726862328 0.0257990190930879 3.41047566202907 3.41047552430192 2437079.284812359 21.3418308625197 2298.40650788883 159.522441059265 28.4153488657475 11573.9856275182 T 17 CATAB v2.0f-lin.ifort 2021-Apr-14 10:43:54 2021-Apr-14 10:43
1993-May-28 13:28 00:01 Eunom 0.00866437888407614 0.00866121634757754 0.00866760798393819 6.49142696486388 6.49142671528014 2449136.061091763 1.27221417162961 1861.98988429594 121.672259756625 -86.8296709075529 10631.5519072767 T 17 CATAB v2.0f-lin.ifort 2021-Apr-14 10:43:54 2021-Apr-14 10:43
2161-Jan-26 19:20 00:05 Eunom 0.0370593383026288 0.0369824716634836 0.0371364026909879 6.68301563899132 6.68301558231211 2510375.305817072 4.82781577596233 5740.1294600645 121.741945543007 48.070778830869 33872.2656316596 T 17 CATAB v2.0f-lin.ifort 2021-Apr-14 10:43:54 2021-Apr-14 10:43
2185-Apr-14 09:18 00:56 Psych 0.034346925124283 0.0342816035550427 0.0344127624156909 3.37715699840288 3.37715689409573 2519218.887583532 55.9362383835544 7396.34584162363 168.969728767693 63.8346400425893 27259.8015062827 T 17 CATAB v2.0f-lin.ifort 2021-Apr-14 10:43:54 2021-Apr-14 10:43

Alternate Designations
 2011 EL18 = 2006 YQ13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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