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413995 (2007 EW157)
Classification: Main-belt Asteroid          SPK-ID: 2413995
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 .1411158449445569 6.24e-08  
a 2.678483066955841 2.7667e-08 au
q 2.300506665792679 1.6727e-07 au
i 3.888802014635157 6.233e-06 deg
node 125.5101191602406 0.00010945 deg
peri 290.9709808401968 0.00011512 deg
M 85.33803465517001 3.2391e-05 deg
tp 2458620.947443814159
(2019-May-17.44744381)
0.00014162 TDB
period 1601.149133314668
4.38
2.4808e-05
6.792e-08
d
yr
n .2248385191045477 3.4836e-09 deg/d
Q 3.056459468119002 3.1571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      6624 days (18.14 yr)  
   first obs. used      2001-12-14  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62668  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 07:03:41  

Additional Information
 Earth MOID = 1.31594 au 
 Jupiter MOID = 2.27762 au 
 T_jup = 3.360 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457519.5 (2016-May-11.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .139426744683438 6.2051e-08  
q 2.307094982984739 1.6585e-07 au
tp 2457019.987497707806
(2014-Dec-28.48749771)
0.00013705 TDB
node 125.5657060804914 0.00010939 deg
peri 291.1865080370027 0.00011524 deg
i 3.888598105713628 6.2331e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      6624 days (18.14 yr)  
   first obs. used      2001-12-14  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62668  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 07:03:41  

Additional Information
 Jupiter MOID = 2.27762 au 
 T_jup = 3.360 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.850288278693076E-15 -1.018634880600709E-14 -2.345424138220589E-12 -4.850618189113219E-15 -5.943325296767532E-13 -7.339891179190822E-15
q -1.018634880600709E-14 2.750553147568751E-14 6.935536886772608E-12 2.038827449393066E-15 1.811299792439202E-12 2.005075476806559E-14
tp -2.345424138220589E-12 6.935536886772608E-12 1.878345914564949E-8 -5.734219155478698E-11 5.022606309244259E-9 1.176703130774998E-11
node -4.850618189113219E-15 2.038827449393066E-15 -5.734219155478698E-11 1.196577646899212E-8 -1.195348230491981E-8 4.264605355303213E-11
peri -5.943325296767532E-13 1.811299792439202E-12 5.022606309244259E-9 -1.195348230491981E-8 1.327963517678891E-8 -3.947056398962602E-11
i -7.339891179190822E-15 2.005075476806559E-14 1.176703130774998E-11 4.264605355303213E-11 -3.947056398962602E-11 3.885160841885184E-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 17.3   n/a MPO455949  

413995 (2007 EW157)          Discovered 2007-Mar-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-11-10

Alternate Designations
 2007 EW157 = 2001 XT263 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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