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(2008 HG)
Classification: Amor [NEO]          SPK-ID: 3409623
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 2454584.5 (2008-Apr-28.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5089783709306553 0.00097334  
a 2.107467587210795 0.0042604 au
q 1.034812167883086 4.0673e-05 au
i 5.939681412011668 0.0079463 deg
node 43.24561956610318 0.0010847 deg
peri 197.5376801428173 0.0038136 deg
M 353.5272916933217 0.019779 deg
tp 2454604.592006866090
(2008-May-18.09200687)
0.00047712 TDB
period 1117.480060754405
3.06
3.3886
0.009277
d
yr
n .3221533991013369 0.00097689 deg/d
Q 3.180123006538505 0.0064289 au
  Orbit Determination Parameters
   # obs. used (total)      92  
   data-arc span      19 days  
   first obs. used      2008-04-24  
   last obs. used      2008-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .62158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 14:44:52  

Additional Information
 Earth MOID = .0326945 au 
 Jupiter MOID = 1.84938 au 
 T_jup = 3.559 
[ 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 23.8   n/a MPO140764  

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