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JPL Small-Body Database Browser
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212098 (2005 EL139)
Classification: Main-belt Asteroid          SPK-ID: 2212098
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03073712738744859 4.6982e-08  
a 2.73844184237755 2.2712e-08 au
q 2.654270006625272 1.3082e-07 au
i 3.377594767716505 5.3647e-06 deg
node 52.08266853829657 7.8698e-05 deg
peri 190.555366424084 0.00011597 deg
M 357.4263349785865 8.3225e-05 deg
tp 2458612.333227912315
(2019-May-08.83322791)
0.00038262 TDB
period 1655.212319003988
4.53
2.0592e-05
5.638e-08
d
yr
n .2174947563323039 2.7058e-09 deg/d
Q 2.822613678129828 2.341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      7574 days (20.74 yr)  
   first obs. used      1998-11-24  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:02:58  

Additional Information
 Earth MOID = 1.641 au 
 Jupiter MOID = 2.15653 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457285.5 (2015-Sep-20.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02949490714219619 4.7007e-08  
q 2.656775139137052 1.3052e-07 au
tp 2456960.758518058640
(2014-Oct-30.25851806)
0.00040394 TDB
node 52.08511643665548 7.8692e-05 deg
peri 191.1135849382525 0.00011872 deg
i 3.378371389021892 5.3646e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      7574 days (20.74 yr)  
   first obs. used      1998-11-24  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:02:58  

Additional Information
 Jupiter MOID = 2.15653 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.209665874114085E-15 -6.046337180791074E-15 -1.896567993447636E-12 1.255464492699713E-14 -4.370175792088711E-13 -1.103663231346093E-15
q -6.046337180791074E-15 1.703602831627368E-14 3.058175604378736E-12 -3.896513338105922E-14 7.458639098603012E-13 3.545531900922273E-15
tp -1.896567993447636E-12 3.058175604378736E-12 1.63166785062068E-7 9.42753436206236E-11 3.59280215485089E-8 -2.292525392644528E-12
node 1.255464492699713E-14 -3.896513338105922E-14 9.42753436206236E-11 6.192507398442913E-9 -6.160719594895039E-9 -4.262389326513564E-12
peri -4.370175792088711E-13 7.458639098603012E-13 3.59280215485089E-8 -6.160719594895039E-9 1.409486119897016E-8 3.783873064823363E-12
i -1.103663231346093E-15 3.545531900922273E-15 -2.292525392644528E-12 -4.262389326513564E-12 3.783873064823363E-12 2.877922864939851E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO437019  

212098 (2005 EL139)          Discovered 2005-Mar-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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