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312480 (2008 TN49)
Classification: Jupiter Trojan          SPK-ID: 2312480
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05702733497387708 1.1815e-07  
a 5.179039509121674 1.843e-07 au
q 4.883692688192049 7.2244e-07 au
i 12.32247776575338 9.2678e-06 deg
node 201.3486602263117 3.2083e-05 deg
peri 176.0831449061042 7.4052e-05 deg
M 315.4958434363905 7.0933e-05 deg
tp 2459132.694444911686
(2020-Oct-10.19444491)
0.0008531 TDB
period 4304.99115053149
11.79
0.0002298
6.292e-07
d
yr
n .08362386527915505 4.4638e-09 deg/d
Q 5.474386330051299 1.9481e-07 au
  Orbit Determination Parameters
   # obs. used (total)      199  
   data-arc span      8853 days (24.24 yr)  
   first obs. used      1995-07-05  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47741  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:19  

Additional Information
 Earth MOID = 3.88495 au 
 Jupiter MOID = .0180315 au 
 T_jup = 2.951 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO455303  
diameter diameter 12.478 km 0.820 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.045   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

312480 (2008 TN49)          Discovered 2008-Oct-02 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2008 TN49 = 2003 JA12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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