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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .262155460914146 5.41e-08  
a 2.757762861053068 1.8526e-08 au
q 2.034800267121787 1.5114e-07 au
i 8.82640257906322 6.4257e-06 deg
node 166.1029764982538 3.6532e-05 deg
peri 188.4283605251132 3.7978e-05 deg
M 42.00363918114393 9.7748e-06 deg
tp 2458405.327680617669
(2018-Oct-13.82768062)
4.5201e-05 TDB
period 1672.760654728722
4.58
1.6856e-05
4.615e-08
d
yr
n .2152130963759323 2.1686e-09 deg/d
Q 3.480725454984348 2.3383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      15359 days (42.05 yr)  
   first obs. used      1977-10-16  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56998  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:27:01  

Additional Information
 Earth MOID = 1.02938 au 
 Jupiter MOID = 1.96061 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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