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JPL Small-Body Database Browser
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312832 (2011 SN257)
Classification: Main-belt Asteroid          SPK-ID: 2312832
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1198899678676652 1.1091e-07  
a 2.34881150164514 2.9135e-08 au
q 2.067212566185701 2.7615e-07 au
i 5.854240782447219 7.389e-06 deg
node 233.1556133591973 0.00010178 deg
peri 144.7787555400166 0.00010779 deg
M 37.96768652334426 3.4224e-05 deg
tp 2458461.830066074697
(2018-Dec-09.33006607)
0.00012487 TDB
period 1314.833238059294
3.60
2.4464e-05
6.698e-08
d
yr
n .2737989804177474 5.0943e-09 deg/d
Q 2.630410437104578 3.2628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      6039 days (16.53 yr)  
   first obs. used      2002-03-05  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54253  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:45:22  

Additional Information
 Earth MOID = 1.07201 au 
 Jupiter MOID = 2.82625 au 
 T_jup = 3.542 
[ 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 17.5   n/a MPO455306  

312832 (2011 SN257)          Discovered 2009-Jan-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 SN257 = 2010 JP168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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