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JPL Small-Body Database Browser
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(2014 HM4)
Classification: Apollo [NEO]          SPK-ID: 3669052
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5299358076655682 2.9499e-06  
a 1.098771325171438 3.7524e-06 au
q .5164930555269454 4.0176e-06 au
i 1.314751038437491 9.4533e-05 deg
node 30.84332882677612 0.00049779 deg
peri 297.9431126288634 0.00018829 deg
M 54.81185487226049 0.010107 deg
tp 2458936.448190869586
(2020-Mar-27.94819087)
0.011483 TDB
period 420.6873009623095
1.15
0.002155
5.9e-06
d
yr
n .855742493715667 4.3837e-06 deg/d
Q 1.681049594815931 5.7409e-06 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      3 days  
   first obs. used      2014-04-23  
   last obs. used      2014-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .51141  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-17 06:10:03  

Additional Information
 Earth MOID = .00165713 au 
 Jupiter MOID = 3.68445 au 
 T_jup = 5.515 
[ 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 26.9   n/a E2014H32  

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