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233739 (2008 SJ258)
Classification: Main-belt Asteroid          SPK-ID: 2233739
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0604406737869876 5.5268e-08  
a 3.006305738432671 3.8928e-08 au
q 2.824602593992113 1.7884e-07 au
i 1.537429564067419 9.0214e-06 deg
node 345.4879313197497 0.00023358 deg
peri 95.24937757196216 0.00024668 deg
M 39.65226592557013 8.0233e-05 deg
tp 2458790.792648702875
(2019-Nov-03.29264870)
0.00042278 TDB
period 1903.917587173287
5.21
3.698e-05
1.012e-07
d
yr
n .189083814564939 3.6726e-09 deg/d
Q 3.188008882873229 4.128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      8157 days (22.33 yr)  
   first obs. used      1997-09-23  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60092  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:23:36  

Additional Information
 Earth MOID = 1.84087 au 
 Jupiter MOID = 1.95373 au 
 T_jup = 3.248 
[ 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 16.3   n/a MPO460024  

233739 (2008 SJ258)          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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