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308940 (2006 SS400)
Classification: Main-belt Asteroid          SPK-ID: 2308940
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02979046564228191 5.2674e-08  
a 2.722005280544658 2.9131e-08 au
q 2.640915475756482 1.4265e-07 au
i 5.691455307554664 7.0049e-06 deg
node 35.25472546404267 5.5233e-05 deg
peri 229.3461228414565 0.00014211 deg
M 126.1325194118733 0.00012865 deg
tp 2458425.779826545861
(2018-Nov-03.27982655)
0.00058909 TDB
period 1640.332432969811
4.49
2.6332e-05
7.209e-08
d
yr
n .2194677083523992 3.5231e-09 deg/d
Q 2.803095085332833 2.9998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      4777 days (13.08 yr)  
   first obs. used      2006-09-25  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63823  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:55:03  

Additional Information
 Earth MOID = 1.62981 au 
 Jupiter MOID = 2.19782 au 
 T_jup = 3.350 
[ 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 16.7   n/a MPO450236  

308940 (2006 SS400)          Discovered 2006-Sep-25 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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