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JPL Small-Body Database Browser
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233738 (2008 SN257)
Classification: Main-belt Asteroid          SPK-ID: 2233738
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09401013861563576 6.8232e-08  
a 2.810440150837629 2.878e-08 au
q 2.546230282686435 1.9758e-07 au
i 4.663249153831362 6.9158e-06 deg
node 51.34207294970788 9.0383e-05 deg
peri 5.109101013162451 9.9788e-05 deg
M 57.52113341851649 4.1924e-05 deg
tp 2458325.530278996204
(2018-Jul-26.03027900)
0.00019922 TDB
period 1720.917055669513
4.71
2.6435e-05
7.238e-08
d
yr
n .2091907909297488 3.2133e-09 deg/d
Q 3.074650018988823 3.1486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      8803 days (24.10 yr)  
   first obs. used      1994-11-29  
   last obs. used      2019-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61416  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:24:39  

Additional Information
 Earth MOID = 1.5576 au 
 Jupiter MOID = 2.22561 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 16.2   n/a MPO454690  

233738 (2008 SN257)          Discovered 2008-Sep-22 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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