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JPL Small-Body Database Browser
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(2015 HQ171)
Classification: Apollo [NEO]          SPK-ID: 3718762
[ 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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2661157970887195 0.00015323  
a 1.172291202622574 0.00016536 au
q .8603259948165745 5.8278e-05 au
i 9.115316827408545 0.0037041 deg
node 42.11888732587037 0.00011126 deg
peri 250.9637211212086 0.0022798 deg
M 5.681244509922206 0.22032 deg
tp 2458593.183680447003
(2019-Apr-19.68368045)		 0.28218 TDB
period 463.6088157231806
1.27		 0.098092
0.0002686		 d
yr
n .7765167265821685 0.0001643 deg/d
Q 1.484256410428574 0.00020936 au
   Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      3 days  
   first obs. used      2015-04-28  
   last obs. used      2015-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40225  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-10 07:06:43  

Additional Information
 Earth MOID = .00303809 au 
 Jupiter MOID = 3.69403 au 
 T_jup = 5.342 
[ 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 26.8   n/a MPO438014  

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