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266799 (2009 SG338)
Classification: Main-belt Asteroid          SPK-ID: 2266799
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2475036202865991 9.4092e-08  
a 2.620363275433482 3.3297e-08 au
q 1.971813878297644 2.5361e-07 au
i 3.868036275783848 9.4781e-06 deg
node 186.4744418022412 9.6935e-05 deg
peri 137.4921799938202 9.8003e-05 deg
M 220.3124398660858 1.6111e-05 deg
tp 2459601.668081557394
(2022-Jan-22.16808156)
7.7263e-05 TDB
period 1549.318415707068
4.24
2.9531e-05
8.085e-08
d
yr
n .2323602407034616 4.4289e-09 deg/d
Q 3.268912672569319 4.1538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      8662 days (23.72 yr)  
   first obs. used      1996-05-15  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:51  

Additional Information
 Earth MOID = .961939 au 
 Jupiter MOID = 2.09262 au 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO433732  

266799 (2009 SG338)          Discovered 2009-Sep-27 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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