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JPL Small-Body Database Browser
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(2011 EP51)
Classification: Aten [NEO]          SPK-ID: 3559843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3076876532865097 1.3259e-07  
a .8287323651520314 6.1276e-09 au
q .5737416485158241 1.0926e-07 au
i 3.408806707127721 5.4388e-06 deg
node 159.8572048787337 2.7243e-05 deg
peri 169.9142150497211 4.9295e-05 deg
M 137.1270057379259 6.3384e-05 deg
tp 2458495.536000830207
(2019-Jan-12.03600083)
4.9002e-05 TDB
period 275.5623481879512
0.75
3.0563e-06
8.368e-09
d
yr
n 1.306419408773716 1.4489e-08 deg/d
Q 1.083723081788239 8.013e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -3.265186681331246E-13 1.919E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      3240 days (8.87 yr)  
   first obs. used      2011-03-12  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-24 05:45:56  

Additional Information
 Earth MOID = .025747 au 
 Jupiter MOID = 4.21858 au 
 T_jup = 7.037 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.2   n/a MPO411533  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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