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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464669543898233 8.5042e-08  
a 2.651002144599995 2.5032e-08 au
q 2.262717934399544 2.254e-07 au
i 10.08162417954001 9.0777e-06 deg
node 144.5811556871562 3.1904e-05 deg
peri 164.9393005762176 4.2326e-05 deg
M 236.7292312202242 2.464e-05 deg
tp 2459540.347567937957
(2021-Nov-21.84756794)
0.00010926 TDB
period 1576.571042603487
4.32
2.233e-05
6.114e-08
d
yr
n .2283436586565172 3.2342e-09 deg/d
Q 3.039286354800447 2.8699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:46:58  

Additional Information
 Earth MOID = 1.25013 au 
 Jupiter MOID = 2.25308 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457220.5 (2015-Jul-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1462839940909989 8.4536e-08  
q 2.265102658658839 2.2325e-07 au
tp 2457960.026098202111
(2017-Jul-25.52609820)
0.00010764 TDB
node 144.6218317004736 3.1867e-05 deg
peri 164.1834225444949 4.2388e-05 deg
i 10.08424870847967 9.0787e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:46:58  

Additional Information
 Jupiter MOID = 2.25308 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.146404043021723E-15 -1.878719812036653E-14 5.534060609920443E-12 5.332972974959356E-15 1.553550467313385E-12 -5.070509029368591E-15
q -1.878719812036653E-14 4.984017738987253E-14 -1.453982033785229E-11 -1.769624148300246E-14 -4.133645604930673E-12 1.298659743738784E-14
tp 5.534060609920443E-12 -1.453982033785229E-11 1.158572297950633E-8 8.985031128577074E-12 3.015752371755047E-9 3.908115673453325E-12
node 5.332972974959356E-15 -1.769624148300246E-14 8.985031128577074E-12 1.015506259301014E-9 -9.959216011870672E-10 9.83669289451074E-11
peri 1.553550467313385E-12 -4.133645604930673E-12 3.015752371755047E-9 -9.959216011870672E-10 1.79676166215714E-9 -9.593647652872166E-11
i -5.070509029368591E-15 1.298659743738784E-14 3.908115673453325E-12 9.83669289451074E-11 -9.593647652872166E-11 8.242341137848004E-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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