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266742 (2009 SJ43)
Classification: Main-belt Asteroid          SPK-ID: 2266742
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09298539675738027 4.2169e-08  
a 2.72393876276274 1.8786e-08 au
q 2.470652236164439 1.1532e-07 au
i 3.726450722006307 5.3128e-06 deg
node 293.5014234736951 9.9777e-05 deg
peri 142.2189511885429 0.00010786 deg
M 90.62180426356551 4.032e-05 deg
tp 2458587.143624336057
(2019-Apr-13.64362434)
0.00018365 TDB
period 1642.080473328732
4.50
1.6988e-05
4.651e-08
d
yr
n .2192340788696114 2.268e-09 deg/d
Q 2.977225289361042 2.0533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      10414 days (28.51 yr)  
   first obs. used      1991-10-14  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:29  

Additional Information
 Earth MOID = 1.4872 au 
 Jupiter MOID = 2.22558 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457353.5 (2015-Nov-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09236480321581469 4.1878e-08  
q 2.474071049862638 1.1455e-07 au
tp 2456948.531053163589
(2014-Oct-18.03105316)
0.0001855 TDB
node 293.5749840496787 9.9733e-05 deg
peri 143.0805383504629 0.00010794 deg
i 3.726304720982804 5.3149e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      10414 days (28.51 yr)  
   first obs. used      1991-10-14  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:29  

Additional Information
 Jupiter MOID = 2.22558 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.753755233331317E-15 -4.743504179362029E-15 -1.505308637408075E-12 -5.989073777339544E-15 -3.808508783091774E-13 -6.477598783478298E-16
q -4.743504179362029E-15 1.312128835384156E-14 3.847699982397097E-12 1.415919435780982E-14 9.945057109433181E-13 1.881919020104163E-15
tp -1.505308637408075E-12 3.847699982397097E-12 3.440894072229309E-8 1.349737522313471E-10 7.716085435504243E-9 1.152044898879199E-12
node -5.989073777339544E-15 1.415919435780982E-14 1.349737522313471E-10 9.946659269007506E-9 -9.894812072220337E-9 1.879777897136043E-10
peri -3.808508783091774E-13 9.945057109433181E-13 7.716085435504243E-9 -9.894812072220337E-9 1.16512622399788E-8 -1.873005122812031E-10
i -6.477598783478298E-16 1.881919020104163E-15 1.152044898879199E-12 1.879777897136043E-10 -1.873005122812031E-10 2.824816838966447E-11

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 16.4   n/a MPO460147  
diameter diameter 2.435 km 0.680 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266742 (2009 SJ43)          Discovered 2009-Sep-16 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SJ43 = 2005 WU175 = 2005 YS11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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