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392135 (2009 GH4)
Classification: Main-belt Asteroid          SPK-ID: 2392135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 .1384593707988694 7.0017e-08  
a 3.144811569346084 5.6167e-08 au
q 2.70938293817342 2.4272e-07 au
i 9.925839188854505 6.6002e-06 deg
node 97.1625701594551 4.4774e-05 deg
peri 167.8664460881361 5.197e-05 deg
M 319.856790069469 2.9096e-05 deg
tp 2459227.643318010848
(2021-Jan-13.14331801)
0.00016666 TDB
period 2036.99690745741
5.58
5.4572e-05
1.494e-07
d
yr
n .1767307543187946 4.7347e-09 deg/d
Q 3.580240200518749 6.3944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      4884 days (13.37 yr)  
   first obs. used      2006-12-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:22:24  

Additional Information
 Earth MOID = 1.69438 au 
 Jupiter MOID = 1.52644 au 
 T_jup = 3.171 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO472028  

392135 (2009 GH4)          Discovered 2008-Jan-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 GH4 = 2011 WY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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