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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .141125890876839 7.9067e-08  
a 2.440678471207261 2.7984e-08 au
q 2.096235547614215 1.8131e-07 au
i 3.144507559495718 7.0047e-06 deg
node 68.41265142890488 0.00014527 deg
peri 71.95522715111298 0.00015001 deg
M 163.6099432531327 3.9733e-05 deg
tp 2458367.546981077569
(2018-Sep-06.04698108)
0.00014712 TDB
period 1392.721507515785
3.81
2.3953e-05
6.558e-08
d
yr
n .2584867096955633 4.4456e-09 deg/d
Q 2.785121394800307 3.1934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      7494 days (20.52 yr)  
   first obs. used      1998-11-23  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69549  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:33  

Additional Information
 Earth MOID = 1.11189 au 
 Jupiter MOID = 2.23495 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457471.5 (2016-Mar-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .140863288989938 7.8554e-08  
q 2.095897484331876 1.7984e-07 au
tp 2456973.390153284504
(2014-Nov-11.89015328)
0.00013497 TDB
node 68.44900359975027 0.00014504 deg
peri 71.4290040457243 0.00014989 deg
i 3.147493861168298 7.0142e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      7494 days (20.52 yr)  
   first obs. used      1998-11-23  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69549  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:33  

Additional Information
 Jupiter MOID = 2.23495 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.170713653538024E-15 -1.403641800809012E-14 5.343574637563733E-12 -3.459705371446202E-14 1.365276406022178E-12 -9.579616381051245E-15
q -1.403641800809012E-14 3.234098150314071E-14 -1.143540523032115E-11 7.252815338490083E-14 -2.856955842923328E-12 2.173319045961127E-14
tp 5.343574637563733E-12 -1.143540523032115E-11 1.821619958864181E-8 -4.978665919526302E-11 5.157990442861685E-9 -1.967603370906927E-11
node -3.459705371446202E-14 7.252815338490083E-14 -4.978665919526302E-11 2.103576677337854E-8 -2.101758155418871E-8 -3.854403128723587E-10
peri 1.365276406022178E-12 -2.856955842923328E-12 5.157990442861685E-9 -2.101758155418871E-8 2.246573209556435E-8 3.796375674756767E-10
i -9.579616381051245E-15 2.173319045961127E-14 -1.967603370906927E-11 -3.854403128723587E-10 3.796375674756767E-10 4.919854885053923E-11

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 17.9   n/a MPO427886  

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 14 CATAB v2.0f-lin.ifort 2019-Sep-24 06:57:34 2019-Sep-24 06:57
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 14 CATAB v2.0f-lin.ifort 2019-Sep-24 06:57:34 2019-Sep-24 06:57
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 14 CATAB v2.0f-lin.ifort 2019-Sep-24 06:57:34 2019-Sep-24 06:57
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 14 CATAB v2.0f-lin.ifort 2019-Sep-24 06:57:34 2019-Sep-24 06:57

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