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(2017 EH4)
Classification: Amor [NEO]          SPK-ID: 3771063
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4222549393328691 0.00012457  
a 1.762492894415124 0.00040026 au
q 1.018271564209253 1.1707e-05 au
i 6.69866395178396 0.001612 deg
node 2.039603229607866 4.2693e-05 deg
peri 137.5162806301131 0.00024517 deg
M 147.3526117666684 0.17252 deg
tp 2458650.679846326089
(2019-Jun-16.17984633)
0.29041 TDB
period 854.6523459117599
2.34
0.29114
0.0007971
d
yr
n .4212239066821316 0.00014349 deg/d
Q 2.506714224620995 0.00056928 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      46 days  
   first obs. used      2017-03-08  
   last obs. used      2017-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .41067  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-23 06:18:14  

Additional Information
 Earth MOID = .0644588 au 
 Jupiter MOID = 2.53647 au 
 T_jup = 4.000 
[ 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 24.1   n/a MPO405483  
rotation period rot_per 0.0624 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Thirouin, A.; Moskovitz, N.A.; Binzel, R.P.; Christensen, E.J.; et al. (2018) Astrophys. J. Supp. Series 2391, A4.]

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