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243474 (2009 SH264)
Classification: Main-belt Asteroid          SPK-ID: 2243474
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2624116094298867 4.7205e-08  
a 2.757699730700468 1.7261e-08 au
q 2.034047306042993 1.2952e-07 au
i 8.827711443650825 5.7585e-06 deg
node 166.0899725276645 3.3767e-05 deg
peri 188.4316189367243 3.505e-05 deg
M 128.0706117908564 9.783e-06 deg
tp 2458405.432988239860
(2018-Oct-13.93298824)
4.4081e-05 TDB
period 1672.703216124909
4.58
1.5705e-05
4.3e-08
d
yr
n .2152204865331693 2.0207e-09 deg/d
Q 3.481352155357943 2.1791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      15448 days (42.29 yr)  
   first obs. used      1977-10-16  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:18  

Additional Information
 Earth MOID = 1.02952 au 
 Jupiter MOID = 1.96359 au 
 T_jup = 3.275 
[ 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 16.4   n/a MPO460067  
diameter diameter 2.872 km 0.448 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243474 (2009 SH264)          Discovered 2009-Sep-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 SH264 = 2008 JV7 = 4357 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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