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(2011 HD24)
Classification: Apollo [NEO]          SPK-ID: 3564145
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 2455680.5 (2011-Apr-29.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8033660798020988 0.0063814  
a 2.201117893915628 0.058267 au
q .4328144402983779 0.002589 au
i 6.831748526252692 0.073293 deg
node 218.2923821019369 0.00078645 deg
peri 109.3404291917823 0.0022282 deg
M 345.2144348597467 0.66304 deg
tp 2455729.489026762853
(2011-Jun-16.98902676)
0.25164 TDB
period 1192.788335605338
3.27
47.362
0.1297
d
yr
n .3018138166293358 0.011984 deg/d
Q 3.969421347532878 0.10508 au
  Orbit Determination Parameters
   # obs. used (total)      18  
   data-arc span      4 days  
   first obs. used      2011-04-28  
   last obs. used      2011-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .51851  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:53:36  

Additional Information
 Earth MOID = .00630251 au 
 Jupiter MOID = 1.5283 au 
 T_jup = 3.133 
[ 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 25.5   n/a MPO198729  

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