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266396 (2007 EL170)
Classification: Main-belt Asteroid          SPK-ID: 2266396
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464669626907393 8.4554e-08  
a 2.651002140210927 2.4433e-08 au
q 2.262717908647583 2.2356e-07 au
i 10.08162417459517 9.0734e-06 deg
node 144.5811590803559 3.1196e-05 deg
peri 164.9393044787783 4.0904e-05 deg
M 236.7292264442619 2.393e-05 deg
tp 2459540.347587512956
(2021-Nov-21.84758751)
0.00010658 TDB
period 1576.571038688169
4.32
2.1796e-05
5.967e-08
d
yr
n .2283436592235948 3.1569e-09 deg/d
Q 3.039286371774271 2.8012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      7676 days (21.02 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:25:48  

Additional Information
 Earth MOID = 1.25013 au 
 Jupiter MOID = 2.25308 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457297.5 (2015-Oct-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460138420480969 8.4127e-08  
q 2.266189761583871 2.218e-07 au
tp 2457960.677088096507
(2017-Jul-26.17708810)
0.0001039 TDB
node 144.6217408787447 3.1161e-05 deg
peri 164.2590543543929 4.1009e-05 deg
i 10.08392308539649 9.0749e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      7676 days (21.02 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:25:48  

Additional Information
 Jupiter MOID = 2.25308 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.077313018629337E-15 -1.857717712561498E-14 5.305024404178863E-12 -8.874675747555674E-16 1.48761854626715E-12 -5.004655863400915E-15
q -1.857717712561498E-14 4.919516257046546E-14 -1.382982660730284E-11 -1.142253691190421E-15 -3.927436247644243E-12 1.288363164542293E-14
tp 5.305024404178863E-12 -1.382982660730284E-11 1.079519229833089E-8 1.951166154523799E-12 2.777150377008765E-9 3.517230952759131E-12
node -8.874675747555674E-16 -1.142253691190421E-15 1.951166154523799E-12 9.709833662294606E-10 -9.541409784825293E-10 9.983555495903494E-11
peri 1.48761854626715E-12 -3.927436247644243E-12 2.777150377008765E-9 -9.541409784825293E-10 1.681717002873292E-9 -9.750731980728058E-11
i -5.004655863400915E-15 1.288363164542293E-14 3.517230952759131E-12 9.983555495903494E-11 -9.750731980728058E-11 8.235382324576082E-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 16.4   n/a MPO423024  

266396 (2007 EL170)          Discovered 2007-Mar-15 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2007 EL170 = 2004 NR28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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