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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05252297426130415 5.4905e-08  
a 2.725992533286828 2.3426e-08 au
q 2.582815297624496 1.5072e-07 au
i 14.29559556073962 6.1177e-06 deg
node 277.2738111533834 2.3712e-05 deg
peri 2.701360928377734 6.8076e-05 deg
M 191.4081861284083 6.4083e-05 deg
tp 2459770.373555499726
(2022-Jul-09.87355550)
0.00029034 TDB
period 1643.937944644197
4.50
2.1191e-05
5.802e-08
d
yr
n .2189863681733534 2.8228e-09 deg/d
Q 2.869169768949159 2.4656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      7084 days (19.39 yr)  
   first obs. used      2000-09-01  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:03:06  

Additional Information
 Earth MOID = 1.56642 au 
 Jupiter MOID = 2.25962 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 15.0   n/a MPO453659  

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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