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249479 (2009 TN7)
Classification: Main-belt Asteroid          SPK-ID: 2249479
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 .2566741400176518 4.2897e-08  
a 3.100947255470261 4.113e-08 au
q 2.305014285432334 1.3101e-07 au
i 5.246863546045756 9.5288e-06 deg
node 314.3995446750624 5.6859e-05 deg
peri 93.84054756754993 6.1917e-05 deg
M 330.8284078215303 2.2893e-05 deg
tp 2459162.120940074715
(2020-Nov-08.62094007)
0.00012839 TDB
period 1994.527349447864
5.46
3.9682e-05
1.086e-07
d
yr
n .1804938899933647 3.591e-09 deg/d
Q 3.896880225508187 5.1687e-08 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7040 days (19.27 yr)  
   first obs. used      2000-03-03  
   last obs. used      2019-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60585  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:47  

Additional Information
 Earth MOID = 1.3224 au 
 Jupiter MOID = 1.57526 au 
 T_jup = 3.164 
[ 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 15.9   n/a MPO476003  
diameter diameter 4.325 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249479 (2009 TN7)          Discovered 2009-Oct-13 by La Sagra at La Sagra
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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