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(2015 EK)
Classification: Apollo [NEO]          SPK-ID: 3712906
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4302790648452872 0.00043023  
a 1.64078972258174 0.0011409 au
q .9347922551415108 5.5911e-05 au
i 4.949989176388786 0.0041276 deg
node 347.0440735531909 8.3062e-05 deg
peri 221.5044127376497 0.0028348 deg
M 159.9089076543947 0.924 deg
tp 2458659.505029579025
(2019-Jun-25.00502958)
1.6147 TDB
period 767.6757420972688
2.10
0.80072
0.002192
d
yr
n .4689479949131778 0.00048913 deg/d
Q 2.34678719002197 0.0016319 au
  Orbit Determination Parameters
   # obs. used (total)      54  
   data-arc span      1 day  
   first obs. used      2015-03-10  
   last obs. used      2015-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .44499  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:35:14  

Additional Information
 Earth MOID = .006693 au 
 Jupiter MOID = 2.62827 au 
 T_jup = 4.181 
[ 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 26.3   n/a E2015L43  
rotation period rot_per 0.0737 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Thirouin, A.; Moskovitz, N.; Binzel, R.P.; Christensen, E.; et al. (2016) Astron. J. 152, A163.]

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