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JPL Small-Body Database Browser
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(2014 HR178)
Classification: Apollo [NEO]          SPK-ID: 3670141
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .474487441218007 4.4633e-06  
a 1.731882630705065 1.3178e-05 au
q .9101260727719084 8.0598e-07 au
i 8.104878338731538 4.8451e-05 deg
node 168.6473147219092 0.0001205 deg
peri 163.6308029987884 0.00011195 deg
M 13.21718760277043 0.0084153 deg
tp 2458569.935825860370
(2019-Mar-27.43582586)
0.019111 TDB
period 832.4844150627309
2.28
0.0095017
2.601e-05
d
yr
n .4324405279981999 4.9357e-06 deg/d
Q 2.553639188638222 1.9431e-05 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      226 days  
   first obs. used      2014-04-30  
   last obs. used      2014-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .36342  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:41:14  

Additional Information
 Earth MOID = .0563463 au 
 Jupiter MOID = 2.83937 au 
 T_jup = 4.010 
[ 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 20.0   n/a E2014V37  

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