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JPL Small-Body Database Browser
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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09298536715086687 5.3958e-08  
a 2.723938761662927 2.4055e-08 au
q 2.470652315813222 1.5618e-07 au
i 3.726451360333142 5.5805e-06 deg
node 293.5013385466444 0.0001154 deg
peri 142.2190434881492 0.00012274 deg
M 90.62179463680975 4.2169e-05 deg
tp 2458587.143668497256
(2019-Apr-13.64366850)
0.00019113 TDB
period 1642.080472334226
4.50
2.1752e-05
5.955e-08
d
yr
n .2192340790023878 2.9041e-09 deg/d
Q 2.977225207512632 2.6292e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      9943 days (27.22 yr)  
   first obs. used      1991-10-14  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5616  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:33:22  

Additional Information
 Earth MOID = 1.4872 au 
 Jupiter MOID = 2.22558 au 
 T_jup = 3.348 
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Orbital Elements at Epoch 2456805.5 (2014-May-28.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09126358597797858 5.3732e-08  
q 2.475376437894207 1.5515e-07 au
tp 2456948.298200402399
(2014-Oct-17.79820040)
0.00019197 TDB
node 293.6115164337377 0.00011519 deg
peri 143.0337109078635 0.00012282 deg
i 3.730164924427023 5.5849e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      9943 days (27.22 yr)  
   first obs. used      1991-10-14  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5616  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:33:22  

Additional Information
 Jupiter MOID = 2.22558 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.88710011160569E-15 -8.264821252017661E-15 -2.852909079384335E-12 -1.294916871744407E-14 -6.1954417110252E-13 -1.827949912128706E-15
q -8.264821252017661E-15 2.407117601401862E-14 8.106029114308945E-12 3.372726170409219E-14 1.754011946679112E-12 5.690473928319353E-15
tp -2.852909079384335E-12 8.106029114308945E-12 3.685268344216678E-8 7.338412724536259E-11 8.261697942449957E-9 5.659576914342471E-12
node -1.294916871744407E-14 3.372726170409219E-14 7.338412724536259E-11 1.326796533468329E-8 -1.322314998462803E-8 9.928957043030313E-11
peri -6.1954417110252E-13 1.754011946679112E-12 8.261697942449957E-9 -1.322314998462803E-8 1.50837965073547E-8 -9.78305969906921E-11
i -1.827949912128706E-15 5.690473928319353E-15 5.659576914342471E-12 9.928957043030313E-11 -9.78305969906921E-11 3.119067295399769E-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

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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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