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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384593669048863 6.898e-08  
a 3.144811563989247 5.415e-08 au
q 2.70938294580413 2.4144e-07 au
i 9.925840252040123 5.9084e-06 deg
node 97.1625719761925 4.4483e-05 deg
peri 167.8664423205184 5.1451e-05 deg
M 319.8567930969054 2.8018e-05 deg
tp 2459227.643300300259
(2021-Jan-13.14330030)
0.00016019 TDB
period 2036.996902252713
5.58
5.2612e-05
1.44e-07
d
yr
n .1767307547703565 4.5647e-09 deg/d
Q 3.580240182174363 6.1648e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      4913 days (13.45 yr)  
   first obs. used      2006-12-13  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:31  

Additional Information
 Earth MOID = 1.69438 au 
 Jupiter MOID = 1.52644 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458185.5 (2018-Mar-08.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379634715195891 6.9139e-08  
q 2.712903617583969 2.4215e-07 au
tp 2457187.627284764508
(2015-Jun-14.12728476)
0.00015325 TDB
node 97.16007096373195 4.4481e-05 deg
peri 167.5931730735144 5.146e-05 deg
i 9.924116102140747 5.9083e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      4913 days (13.45 yr)  
   first obs. used      2006-12-13  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:31  

Additional Information
 Jupiter MOID = 1.52644 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.780264478490348E-15 -1.648970424151862E-14 -4.643854187779804E-12 -2.552861080055244E-14 -8.074286511503124E-13 -1.098543621954189E-14
q -1.648970424151862E-14 5.863846637470886E-14 1.437615623060667E-11 1.013638609073827E-13 2.654805754968008E-12 4.306494903333854E-14
tp -4.643854187779804E-12 1.437615623060667E-11 2.34848143251788E-8 2.523771857079768E-11 4.042614343581311E-9 1.766165801364404E-11
node -2.552861080055244E-14 1.013638609073827E-13 2.523771857079768E-11 1.978568046550044E-9 -1.942769184983137E-9 -9.987319739211008E-11
peri -8.074286511503124E-13 2.654805754968008E-12 4.042614343581311E-9 -1.942769184983137E-9 2.648182740520756E-9 1.021041403964023E-10
i -1.098543621954189E-14 4.306494903333854E-14 1.766165801364404E-11 -9.987319739211008E-11 1.021041403964023E-10 3.490786546771977E-11

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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