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266773 (2009 SC188)
Classification: Main-belt Asteroid          SPK-ID: 2266773
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427716241632207 5.4328e-08  
a 3.086490975951878 4.4396e-08 au
q 2.645827646350104 1.821e-07 au
i 10.38569546977087 7.4215e-06 deg
node 176.5184331527119 2.8155e-05 deg
peri 249.4500865664417 4.7126e-05 deg
M 314.1964487327022 4.5656e-05 deg
tp 2459252.495389318752
(2021-Feb-06.99538932)		 0.00025507 TDB
period 1980.596212405928
5.42		 4.2733e-05
1.17e-07		 d
yr
n .1817634496850271 3.9217e-09 deg/d
Q 3.527154305553652 5.0734e-08 au
   Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60552  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:52  

Additional Information
 Earth MOID = 1.68081 au 
 Jupiter MOID = 1.92529 au 
 T_jup = 3.185 
[ 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 16.0   n/a MPO454982  

266773 (2009 SC188)          Discovered 2009-Sep-21 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SC188 = 1998 SQ4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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