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266745 (2009 SS50)
Classification: Main-belt Asteroid          SPK-ID: 2266745
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08477073959897966 5.5398e-08  
a 2.442901624364033 2.0375e-08 au
q 2.235815046899145 1.3433e-07 au
i 6.115152531281799 5.7413e-06 deg
node 5.537013193671596 5.7614e-05 deg
peri 268.187978712774 6.6917e-05 deg
M 5.021302123650459 3.5172e-05 deg
tp 2458981.047687113305
(2020-May-11.54768711)
0.00013624 TDB
period 1394.624833711273
3.82
1.7448e-05
4.777e-08
d
yr
n .2581339377429515 3.2294e-09 deg/d
Q 2.649988201828921 2.2102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      5939 days (16.26 yr)  
   first obs. used      2004-02-26  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57863  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:57:28  

Additional Information
 Earth MOID = 1.23005 au 
 Jupiter MOID = 2.43892 au 
 T_jup = 3.488 
[ 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 17.2   n/a MPO427481  

266745 (2009 SS50)          Discovered 2009-Sep-17 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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