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15209 (1979 ML2)
Classification: Main-belt Asteroid          SPK-ID: 2015209
[ 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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914133032777046 3.1372e-08  
a 3.061589024040874 1.8017e-08 au
q 2.475560155670447 9.6475e-08 au
i 12.90852380731603 3.5139e-06 deg
node 130.1579657585291 1.9683e-05 deg
peri 150.1435858354374 2.2454e-05 deg
M 245.9905005869427 1.1105e-05 deg
tp 2459620.165479862878
(2022-Feb-09.66547986)		 6.1433e-05 TDB
period 1956.675311259962
5.36		 1.7272e-05
4.729e-08		 d
yr
n .1839855585279426 1.6241e-09 deg/d
Q 3.647617892411301 2.1466e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1693  
   data-arc span      14807 days (40.54 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:44:11  

Additional Information
 Earth MOID = 1.46823 au 
 Jupiter MOID = 1.61188 au 
 T_jup = 3.167 
[ 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 13.3   n/a MPO337387  
diameter diameter 6.956 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.210   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15209 (1979 ML2)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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