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JPL Small-Body Database Browser
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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1061063577620533 3.8695e-08  
a 2.692819701842394 1.6051e-08 au
q 2.407094411169999 1.0362e-07 au
i 8.635260963652051 5.2847e-06 deg
node 4.607627924558255 2.988e-05 deg
peri 66.88890889993216 3.9499e-05 deg
M 192.8144907125067 2.6352e-05 deg
tp 2459350.058395352960
(2021-May-15.55839535)		 0.00012038 TDB
period 1614.021594796503
4.42		 1.4431e-05
3.951e-08		 d
yr
n .2230453428632032 1.9943e-09 deg/d
Q 2.978544992514788 1.7754e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1202  
   data-arc span      8452 days (23.14 yr)  
   first obs. used      1996-03-17  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49137  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:34:38  

Additional Information
 Earth MOID = 1.43619 au 
 Jupiter MOID = 2.29848 au 
 T_jup = 3.347 
[ 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 13.6   n/a MPO296485  

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

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