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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427716938683834 5.0761e-08  
a 3.086490972610798 2.8625e-08 au
q 2.64582742834168 1.5897e-07 au
i 10.3856953434014 6.6644e-06 deg
node 176.5184299516307 2.5972e-05 deg
peri 249.4500825818313 3.4093e-05 deg
M 314.1964635142558 2.3238e-05 deg
tp 2459252.495307586555
(2021-Feb-06.99530759)
0.00012846 TDB
period 1980.596209189979
5.42
2.7553e-05
7.544e-08
d
yr
n .1817634499801614 2.5286e-09 deg/d
Q 3.527154516879915 3.2712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      243  
   data-arc span      8095 days (22.16 yr)  
   first obs. used      1998-09-18  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:21:01  

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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