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120715 (1997 SG4)
Classification: Main-belt Asteroid          SPK-ID: 2120715
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721684305071605 4.7594e-08  
a 2.38878022170145 9.8675e-09 au
q 1.977507680104564 1.1692e-07 au
i 5.7745995760988 5.2229e-06 deg
node 205.6136415543873 3.7686e-05 deg
peri 141.7122471135498 4.0251e-05 deg
M 66.6876606934953 1.1532e-05 deg
tp 2458750.692368776591
(2019-Sep-24.19236878)		 4.3576e-05 TDB
period 1348.536540421774
3.69		 8.3558e-06
2.288e-08		 d
yr
n .2669560588157329 1.6541e-09 deg/d
Q 2.800052763298335 1.1566e-08 au
   Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      8098 days (22.17 yr)  
   first obs. used      1997-09-27  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52207  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:01:57  

Additional Information
 Earth MOID = .975047 au 
 Jupiter MOID = 2.64128 au 
 T_jup = 3.506 
[ 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 15.5   n/a MPO449701  

120715 (1997 SG4)          Discovered 1997-Sep-27 by Kobayashi, T. at Oizumi
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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