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410997 (2009 US39)
Classification: Main-belt Asteroid          SPK-ID: 2410997
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1916080758245555 6.3601e-08  
a 3.111804030424445 4.8297e-08 au
q 2.51555724781172 2.0481e-07 au
i 16.05609437968301 7.0449e-06 deg
node 231.207054146096 2.8374e-05 deg
peri 194.8056631665552 3.6556e-05 deg
M 323.0499092827685 2.7082e-05 deg
tp 2459206.292618677747
(2020-Dec-22.79261868)
0.0001543 TDB
period 2005.011118672015
5.49
4.6678e-05
1.278e-07
d
yr
n .1795501265042559 4.1801e-09 deg/d
Q 3.70805081303717 5.7551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      7580 days (20.75 yr)  
   first obs. used      1998-11-23  
   last obs. used      2019-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56309  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:24:53  

Additional Information
 Earth MOID = 1.53179 au 
 Jupiter MOID = 1.66514 au 
 T_jup = 3.131 
[ 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 15.6   n/a MPO455921  
diameter diameter 4.888 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

410997 (2009 US39)          Discovered 2009-Oct-22 by CSS at Catalina
Reference: Last Updated: 2014-10-09

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