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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191413312385916 3.0119e-08  
a 3.061589031338916 1.6611e-08 au
q 2.475560133685946 9.4104e-08 au
i 12.90852374710859 3.5115e-06 deg
node 130.1579589837834 1.7173e-05 deg
peri 150.1435866948518 1.9676e-05 deg
M 245.9905037641519 1.0657e-05 deg
tp 2459620.165464809767
(2022-Feb-09.66546481)		 5.9609e-05 TDB
period 1956.675318256279
5.36		 1.5924e-05
4.36e-08		 d
yr
n .1839855578700811 1.4973e-09 deg/d
Q 3.647617928991886 1.979e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      14975 days (41.00 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50304  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:35:05  

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

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