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46950 (1998 SA118)
Classification: Main-belt Asteroid          SPK-ID: 2046950
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1067798026384639 2.4227e-08  
a 2.68946250706917 1.1057e-08 au
q 2.402282231360776 6.8937e-08 au
i 8.639049500490245 7.2804e-07 deg
node 4.504074169050551 5.4957e-06 deg
peri 67.71391974804305 1.2732e-05 deg
M 326.0509757152548 1.2326e-05 deg
tp 2459352.422278229420
(2021-May-17.92227823)
5.5225e-05 TDB
period 1611.004183916028
4.41
9.9348e-06
2.72e-08
d
yr
n .2234631067964779 1.3781e-09 deg/d
Q 2.976642782777564 1.2238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1761  
   data-arc span      9121 days (24.97 yr)  
   first obs. used      1996-03-17  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45135  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:54:03  

Additional Information
 Earth MOID = 1.43147 au 
 Jupiter MOID = 2.29616 au 
 T_jup = 3.348 
[ 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 13.73   n/a E2021B10  

46950 (1998 SA118)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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