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312559 (2009 GH2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2312559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08235939623291068 7.039e-08  
a 1.97072378598254 1.2043e-08 au
q 1.808416164827182 1.3998e-07 au
i 17.89639259783595 8.2161e-06 deg
node 341.9755406486806 1.8339e-05 deg
peri 211.2231541604933 5.9171e-05 deg
M 347.7817982275823 5.6667e-05 deg
tp 2459034.795872547101
(2020-Jul-04.29587255)
0.00015899 TDB
period 1010.5017372383
2.77
9.2628e-06
2.536e-08
d
yr
n .3562586651101458 3.2656e-09 deg/d
Q 2.133031407137898 1.3035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      8068 days (22.09 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:27:45  

Additional Information
 Earth MOID = .825635 au 
 Jupiter MOID = 2.85742 au 
 T_jup = 3.808 
[ 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 17.2   n/a MPO391629  

312559 (2009 GH2)          Discovered 2009-Apr-01 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2009 GH2 = 2004 LS23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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