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266769 (2009 SG158)
Classification: Main-belt Asteroid          SPK-ID: 2266769
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08477852109384297 6.862e-08  
a 2.777211538165503 3.6735e-08 au
q 2.541763651195075 2.0005e-07 au
i 3.559250855153938 7.0714e-06 deg
node 276.9409563616085 0.0001137 deg
peri 97.33477475203523 0.00012136 deg
M 117.2372475861421 4.1086e-05 deg
tp 2458449.977616773367
(2018-Nov-27.47761677)
0.00019392 TDB
period 1690.487127957909
4.63
3.3541e-05
9.183e-08
d
yr
n .2129563686384743 4.2253e-09 deg/d
Q 3.012659425135932 3.9849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      5169 days (14.15 yr)  
   first obs. used      2005-12-05  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44999  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:34  

Additional Information
 Earth MOID = 1.54546 au 
 Jupiter MOID = 2.42554 au 
 T_jup = 3.327 
[ 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 16.5   n/a MPO454982  
diameter diameter 3.006 km 0.526 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266769 (2009 SG158)          Discovered 2009-Sep-20 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SG158 = 2005 YJ238 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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