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120909 (1998 SO58)
Classification: Main-belt Asteroid          SPK-ID: 2120909
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2678335057093761 4.2673e-08  
a 2.754571530756887 1.5297e-08 au
q 2.016804980947027 1.2237e-07 au
i 13.29221959694953 5.6107e-06 deg
node 176.956329456725 1.9946e-05 deg
peri 142.9046853962888 2.2803e-05 deg
M 334.612204233903 1.3798e-05 deg
tp 2459318.261140739781
(2021-Apr-13.76114074)
6.4657e-05 TDB
period 1669.857874110295
4.57
1.391e-05
3.808e-08
d
yr
n .2155872098946199 1.7959e-09 deg/d
Q 3.492338080566746 1.9394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      500  
   data-arc span      7998 days (21.90 yr)  
   first obs. used      1998-08-28  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62569  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:51  

Additional Information
 Earth MOID = 1.01996 au 
 Jupiter MOID = 1.97612 au 
 T_jup = 3.253 
[ 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 15.44   n/a E2021B55  

120909 (1998 SO58)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 SO58 = 2002 LN47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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