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392610 (2011 SM255)
Classification: Main-belt Asteroid          SPK-ID: 2392610
[ 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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01599294788698882 1.2272e-06  
a 2.910811171032937 8.0758e-08 au
q 2.864258719665743 3.5084e-06 au
i 1.563601233955472 8.642e-05 deg
node 194.9736643656613 0.00096678 deg
peri 16.52805732075868 0.0029638 deg
M 57.08210833526118 0.0027891 deg
tp 2458712.881391369053
(2019-Aug-17.38139137)		 0.014063 TDB
period 1813.925626205011
4.97		 7.5489e-05
2.067e-07		 d
yr
n .1984645868602512 8.2593e-09 deg/d
Q 2.957363622400132 8.2049e-08 au
   Orbit Determination Parameters
   # obs. used (total)      62  
   data-arc span      7336 days (20.08 yr)  
   first obs. used      1999-03-11  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .72314  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:28:59  

Additional Information
 Earth MOID = 1.85669 au 
 Jupiter MOID = 2.0012 au 
 T_jup = 3.283 
[ 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 17.2   n/a MPO472031  

392610 (2011 SM255)          Discovered 2004-Mar-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2011 SM255 = 2004 ER26 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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