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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2661951257108159 0.0001521  
a 1.172372648371242 0.0001632 au
q .860292763858137 5.857e-05 au
i 9.115143051695107 0.0037006 deg
node 42.11239727372955 0.00014123 deg
peri 250.9779609202913 0.0022194 deg
M 316.2718600464535 0.28592 deg
tp 2459056.819066415612
(2020-Jul-26.31906642)
0.38001 TDB
period 463.6571308809152
1.27
0.096816
0.0002651
d
yr
n .7764358100478814 0.00016213 deg/d
Q 1.484452532884347 0.00020664 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 = .00308657 au 
 Jupiter MOID = 3.69487 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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