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118858 (2000 SM311)
Classification: Main-belt Asteroid          SPK-ID: 2118858
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05250443189950435 5.1418e-08  
a 2.725854008747319 2.1629e-08 au
q 2.582734592577055 1.4415e-07 au
i 14.29474941113912 5.8117e-06 deg
node 277.2715739794637 2.3332e-05 deg
peri 2.851005613368043 6.7214e-05 deg
M 235.0446217041315 6.353e-05 deg
tp 2459771.064527946441
(2022-Jul-10.56452795)		 0.00028865 TDB
period 1643.812638255284
4.50		 1.9565e-05
5.357e-08		 d
yr
n .219003061311232 2.6066e-09 deg/d
Q 2.868973424917584 2.2765e-08 au
   Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      7441 days (20.37 yr)  
   first obs. used      2000-09-01  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:20:58  

Additional Information
 Earth MOID = 1.56447 au 
 Jupiter MOID = 2.25909 au 
 T_jup = 3.310 
[ 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 15.03   n/a E2021B55  

118858 (2000 SM311)          Discovered 2000-Sep-27 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2000 SM311 = 2001 YZ122 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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