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(2017 HG4)
Classification: Aten [NEO]          SPK-ID: 3774114
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1867273122171995 5.7643e-05  
a .8623125930212399 3.7838e-05 au
q .7012952802353399 8.0479e-05 au
i 2.983718428820449 0.0011319 deg
node 210.7452524486337 0.00037549 deg
peri 204.8019437814882 0.0016958 deg
M 103.3461005527512 0.090689 deg
tp 2458916.537161277535
(2020-Mar-08.03716128)		 0.068154 TDB
period 292.4795592520568
0.80		 0.019251
5.271e-05		 d
yr
n 1.230855246502046 8.1014e-05 deg/d
Q 1.02332990580714 4.4903e-05 au
   Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      31 days  
   first obs. used      2017-04-26  
   last obs. used      2017-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .47971  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-29 06:18:06  

Additional Information
 Earth MOID = .00164585 au 
 Jupiter MOID = 4.18663 au 
 T_jup = 6.833 
[ 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 27.7   n/a MPO411588  

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