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266357 (2007 EY9)
Classification: Main-belt Asteroid          SPK-ID: 2266357
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1318458608830602 6.5022e-08  
a 2.668148095419237 1.8293e-08 au
q 2.316363812815191 1.763e-07 au
i 8.892110692941767 7.2197e-06 deg
node 33.06466380693215 3.0931e-05 deg
peri 163.4972482562594 3.6544e-05 deg
M 1.871187706770521 1.7244e-05 deg
tp 2458992.225758760356
(2020-May-22.72575876)
7.6248e-05 TDB
period 1591.890987469545
4.36
1.6371e-05
4.482e-08
d
yr
n .2261461386701187 2.3257e-09 deg/d
Q 3.019932378023284 2.0705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      6712 days (18.38 yr)  
   first obs. used      2002-01-05  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:26:05  

Additional Information
 Earth MOID = 1.31566 au 
 Jupiter MOID = 1.93702 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457845.5 (2017-Apr-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132474410240329 6.5014e-08  
q 2.314737169763167 1.763e-07 au
tp 2457398.651985267627
(2016-Jan-11.15198527)
7.6674e-05 TDB
node 33.07656983075542 3.0926e-05 deg
peri 163.232994152404 3.649e-05 deg
i 8.893350795085036 7.2206e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      6712 days (18.38 yr)  
   first obs. used      2002-01-05  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:26:05  

Additional Information
 Jupiter MOID = 1.93702 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.22678546616404E-15 -1.141653576030998E-14 2.04565799467426E-14 -2.8903342174131E-14 7.894818716122633E-14 -2.975049244815171E-15
q -1.141653576030998E-14 3.10826438363298E-14 -2.473685398102292E-13 7.950663870606603E-14 -2.456987018727805E-13 8.098002162170516E-15
tp 2.04565799467426E-14 -2.473685398102292E-13 5.878865832180413E-9 -1.856362139138788E-11 1.499535346291031E-9 4.854762728519848E-12
node -2.8903342174131E-14 7.950663870606603E-14 -1.856362139138788E-11 9.564256770250035E-10 -9.491866123474822E-10 -8.06987181130243E-11
peri 7.894818716122633E-14 -2.456987018727805E-13 1.499535346291031E-9 -9.491866123474822E-10 1.331542128941548E-9 8.098500194058252E-11
i -2.975049244815171E-15 8.098002162170516E-15 4.854762728519848E-12 -8.06987181130243E-11 8.098500194058252E-11 5.213775843958289E-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 16.1   n/a MPO427480  

266357 (2007 EY9)          Discovered 2007-Mar-10 by Kocher, P. at Marly
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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