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JPL Small-Body Database Browser
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(2017 EK)
Classification: Apollo [NEO]          SPK-ID: 3770325
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5653526132619335 1.5577e-06  
a 2.13461047818932 7.1087e-06 au
q .9278028660486821 3.0161e-07 au
i 11.19481483628742 2.1532e-05 deg
node 171.6774151252328 7.1874e-06 deg
peri 39.87368309993762 5.1397e-05 deg
M 1.907339301494732 0.0018297 deg
tp 2458994.464658636323
(2020-May-24.96465864)
0.0057596 TDB
period 1139.138112039705
3.12
0.0056903
1.558e-05
d
yr
n .3160284044534294 1.5787e-06 deg/d
Q 3.341418090329957 1.1128e-05 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      14 days  
   first obs. used      2017-03-02  
   last obs. used      2017-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .25683  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:01:47  

Additional Information
 Earth MOID = .0112903 au 
 Jupiter MOID = 1.67242 au 
 T_jup = 3.474 
[ 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 24.2   n/a E2019Y43  
rotation period rot_per 0.0083 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Observers at Arecibo and/or Goldstone (2017) http://www.naic.edu/~pradar/; http://echo.jpl.nasa.gov]

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