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JPL Small-Body Database Browser
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(2010 HS20)
Classification: Apollo [NEO]          SPK-ID: 3518258
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5542368170711447 0.00068541  
a 2.209995615260361 0.0032057 au
q .9851346797172724 8.5755e-05 au
i 2.217497979697861 0.0017717 deg
node 99.70379110874303 0.013284 deg
peri 158.744484306678 0.010117 deg
M 255.8064480577483 2.117 deg
tp 2458947.815277686754
(2020-Apr-08.31527769)
7.8124 TDB
period 1200.011878244924
3.29
2.611
0.007149
d
yr
n .299997030468163 0.00065275 deg/d
Q 3.434856550803449 0.0049825 au
  Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      29 days  
   first obs. used      2010-04-20  
   last obs. used      2010-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .45987  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:57:43  

Additional Information
 Earth MOID = .00204433 au 
 Jupiter MOID = 1.65068 au 
 T_jup = 3.439 
[ 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 23.3   n/a MPO176593  

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