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452974 (2007 EH15)
Classification: Main-belt Asteroid          SPK-ID: 2452974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363480162431326 5.0392e-08  
a 3.053475662346574 5.4257e-08 au
q 2.637140313138933 1.7438e-07 au
i 9.695162385394378 5.7873e-06 deg
node 157.8000694316459 4.0084e-05 deg
peri 163.2269211707505 5.463e-05 deg
M 15.70504826144614 3.4339e-05 deg
tp 2458915.478865528039
(2020-Mar-06.97886553)
0.00018719 TDB
period 1948.902537602742
5.34
5.1944e-05
1.422e-07
d
yr
n .1847193448897757 4.9234e-09 deg/d
Q 3.469811011554215 6.1654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      5014 days (13.73 yr)  
   first obs. used      2007-02-21  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53554  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 07:07:55  

Additional Information
 Earth MOID = 1.62655 au 
 Jupiter MOID = 1.89268 au 
 T_jup = 3.200 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457976.5 (2017-Aug-11.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384266613305696 5.0509e-08  
q 2.629372895654506 1.7602e-07 au
tp 2458917.779811530048
(2020-Mar-09.27981153)
0.00018415 TDB
node 157.9563699064725 4.0089e-05 deg
peri 163.8083459398834 5.4339e-05 deg
i 9.69661247184235 5.7954e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      5014 days (13.73 yr)  
   first obs. used      2007-02-21  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53554  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 07:07:55  

Additional Information
 Jupiter MOID = 1.89268 au 
 T_jup = 3.200 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.55113181606273E-15 -8.604052273084219E-15 3.948383857305239E-12 3.307967622787714E-14 6.946925429392436E-13 -5.949190330187764E-15
q -8.604052273084219E-15 3.098337237970363E-14 -1.714022264722133E-11 -1.302679216419187E-13 -3.265261539573956E-12 2.840232361211485E-14
tp 3.948383857305239E-12 -1.714022264722133E-11 3.391260824746406E-8 1.978261118199615E-10 6.789208695597393E-9 -3.526305985363184E-11
node 3.307967622787714E-14 -1.302679216419187E-13 1.978261118199615E-10 1.607154854036366E-9 -1.544079582071164E-9 1.072958384756309E-10
peri 6.946925429392436E-13 -3.265261539573956E-12 6.789208695597393E-9 -1.544079582071164E-9 2.952743163179039E-9 -1.135081348369404E-10
i -5.949190330187764E-15 2.840232361211485E-14 -3.526305985363184E-11 1.072958384756309E-10 -1.135081348369404E-10 3.358662840852847E-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 16.2   n/a MPO437751  

452974 (2007 EH15)          Discovered 2007-Feb-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-01-04

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