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266812 (2009 SL361)
Classification: Main-belt Asteroid          SPK-ID: 2266812
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09922831473849196 8.1923e-08  
a 3.099669507500607 7.1219e-08 au
q 2.79209452602503 2.9448e-07 au
i 9.074502338801382 1.5998e-05 deg
node 324.7547047456312 4.2838e-05 deg
peri 93.31572741678578 0.00012128 deg
M 317.8353643855023 0.0001222 deg
tp 2459233.962624909756
(2021-Jan-19.46262491)
0.0006825 TDB
period 1993.294706396417
5.46
6.8698e-05
1.881e-07
d
yr
n .1806055064736649 6.2245e-09 deg/d
Q 3.407244488976183 7.8286e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      5823 days (15.94 yr)  
   first obs. used      2003-09-18  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57298  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:55  

Additional Information
 Earth MOID = 1.8233 au 
 Jupiter MOID = 1.9128 au 
 T_jup = 3.195 
[ 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 15.4   n/a MPO454983  
diameter diameter 2.997 km 0.428 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266812 (2009 SL361)          Discovered 2009-Sep-18 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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