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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01499523644142698 1.2496e-06  
a 2.907586135894485 7.242e-08 au
q 2.863986194312933 3.5804e-06 au
i 1.564449318853129 8.6453e-05 deg
node 195.0190087727127 0.0009663 deg
peri 14.49711174669983 0.0029851 deg
M 339.6015810278231 0.0028141 deg
tp 2458703.110385176062
(2019-Aug-07.61038518)
0.014153 TDB
period 1810.911851245312
4.96
6.7657e-05
1.852e-07
d
yr
n .1987948777034279 7.4272e-09 deg/d
Q 2.951186077476038 7.3506e-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 = 1.8568 au 
 Jupiter MOID = 2.00804 au 
 T_jup = 3.284 
[ 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 17.3   n/a MPO386572  

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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