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259498 (2003 SB257)
Classification: Main-belt Asteroid          SPK-ID: 2259498
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908050526130789 4.5757e-08  
a 2.353074868853804 1.5459e-08 au
q 1.90409629469964 1.0219e-07 au
i 1.941133853157869 4.9806e-06 deg
node 185.3972566747368 0.00012875 deg
peri 235.4942481628497 0.0001299 deg
M 177.3676016872276 1.376e-05 deg
tp 2458350.933172338293
(2018-Aug-20.43317234)
4.9438e-05 TDB
period 1318.41472587862
3.61
1.2992e-05
3.557e-08
d
yr
n .2730552025350658 2.6909e-09 deg/d
Q 2.802053443007968 1.8409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      6097 days (16.69 yr)  
   first obs. used      2003-09-16  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54516  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:09:35  

Additional Information
 Earth MOID = .917624 au 
 Jupiter MOID = 2.52631 au 
 T_jup = 3.531 
[ 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 17.4   n/a MPO418381  

259498 (2003 SB257)          Discovered 2003-Sep-28 by Spacewatch at Kitt Peak
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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