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(2019 HM4)
Classification: Amor [NEO]          SPK-ID: 3841675
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 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4565604139882295 0.00051272  
a 1.886733155841738 0.0018099 au
q 1.025325485125316 1.623e-05 au
i 9.282948263379085 0.007334 deg
node 37.87159987110687 0.00077757 deg
peri 182.3660289505314 0.0022986 deg
M 150.3320775325593 0.21696 deg
tp 2458605.212293855090
(2019-May-01.71229385)
0.0017997 TDB
period 946.59487547724
2.59
1.3621
0.003729
d
yr
n .3803105312803438 0.00054724 deg/d
Q 2.748140826558161 0.0026363 au
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      3 days  
   first obs. used      2019-04-29  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .37491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-02 21:50:07  

Additional Information
 Earth MOID = .0183896 au 
 Jupiter MOID = 2.23079 au 
 T_jup = 3.815 
[ 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 26.5   .43136 MPO467584 autocmod 2.6q

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