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JPL Small-Body Database Browser
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(2011 HH)
Classification: Amor [NEO]          SPK-ID: 3563709
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 .2120806917904197 7.7479e-05  
a 1.303575498308687 0.00013897 au
q 1.02711230482634 8.5079e-06 au
i 3.478308552519057 0.0023815 deg
node 45.75118064842358 0.00925 deg
peri 151.2026149296549 0.017866 deg
M 50.39561517823726 0.48862 deg
tp 2458924.398544940278
(2020-Mar-15.89854494)
0.72568 TDB
period 543.6291178231447
1.49
0.086934
0.000238
d
yr
n .6622161841542793 0.0001059 deg/d
Q 1.580038691791035 0.00016845 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      23 days  
   first obs. used      2011-04-23  
   last obs. used      2011-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .44444  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:53:40  

Additional Information
 Earth MOID = .0315209 au 
 Jupiter MOID = 3.37513 au 
 T_jup = 4.968 
[ 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 25.3   n/a MPO200330  

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