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308918 (2006 SD305)
Classification: Main-belt Asteroid          SPK-ID: 2308918
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 .08572435915902168 5.8191e-08  
a 2.782171859526327 3.3059e-08 au
q 2.543671959798169 1.6848e-07 au
i 4.565730325552007 5.4685e-06 deg
node 95.19001329472417 9.5051e-05 deg
peri 217.4286890160786 0.00010442 deg
M 27.98992409464994 4.252e-05 deg
tp 2458868.712694910532
(2020-Jan-20.21269491)
0.00019997 TDB
period 1695.018166958052
4.64
3.0211e-05
8.271e-08
d
yr
n .2123871041725001 3.7855e-09 deg/d
Q 3.020671759254485 3.5893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      9287 days (25.43 yr)  
   first obs. used      1995-02-24  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:58:59  

Additional Information
 Earth MOID = 1.53118 au 
 Jupiter MOID = 2.18359 au 
 T_jup = 3.323 
[ 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 MPO397085  

308918 (2006 SD305)          Discovered 2006-Sep-27 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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