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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2565241521494742 4.2853e-08  
a 3.104639235102178 4.2645e-08 au
q 2.3082242875876 1.3052e-07 au
i 5.242269206693121 9.5211e-06 deg
node 314.4166474035549 5.6916e-05 deg
peri 93.55687645447188 6.1969e-05 deg
M 258.9355335257765 2.2236e-05 deg
tp 2459161.433175197528
(2020-Nov-07.93317520)
0.00012856 TDB
period 1998.090427980577
5.47
4.1168e-05
1.127e-07
d
yr
n .1801720257295079 3.7122e-09 deg/d
Q 3.901054182616756 5.3584e-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 = 1.32505 au 
 Jupiter MOID = 1.57108 au 
 T_jup = 3.163 
[ 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 16.1   n/a MPO367670  
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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