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216421 (2008 TD3)
Classification: Jupiter Trojan          SPK-ID: 2216421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1356408339726114 8.4346e-08  
a 5.145457498285151 1.3034e-07 au
q 4.447523352047127 4.7903e-07 au
i 7.678967371461884 5.5952e-06 deg
node 239.1132919903162 5.8331e-05 deg
peri 130.1977561439067 6.22e-05 deg
M 30.92618978046431 1.9042e-05 deg
tp 2459030.266273841402
(2020-Jun-29.76627384)
0.00023096 TDB
period 4263.18736168332
11.67
0.00016198
4.435e-07
d
yr
n .08444386076849646 3.2085e-09 deg/d
Q 5.843391644523176 1.4801e-07 au
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      8889 days (24.34 yr)  
   first obs. used      1996-09-10  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44621  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:44  

Additional Information
 Earth MOID = 3.45327 au 
 Jupiter MOID = .097264 au 
 T_jup = 2.964 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457316.5 (2015-Oct-21.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339275904369209 8.4246e-08  
q 4.451994261942557 4.7359e-07 au
tp 2459029.400282303296
(2020-Jun-28.90028230)
0.00023406 TDB
node 239.1095925581893 5.8306e-05 deg
peri 129.9222529754103 6.2299e-05 deg
i 7.681053362981157 5.6006e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      8889 days (24.34 yr)  
   first obs. used      1996-09-10  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44621  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:44  

Additional Information
 Jupiter MOID = .097264 au 
 T_jup = 2.964 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.097386693622221E-15 -3.882135140080956E-14 -2.835353894873306E-12 -1.277767881165185E-14 -3.223411654538872E-13 1.633661721282792E-15
q -3.882135140080956E-14 2.242888410925451E-13 3.110070462056406E-12 5.098951300618896E-14 1.911641675788285E-13 -2.384561771122184E-15
tp -2.835353894873306E-12 3.110070462056406E-12 5.478504582393585E-8 1.933372169989764E-11 5.288806609183008E-9 -1.060878331769998E-11
node -1.277767881165185E-14 5.098951300618896E-14 1.933372169989764E-11 3.399622663438548E-9 -3.365812338347615E-9 -1.471634117684448E-10
peri -3.223411654538872E-13 1.911641675788285E-13 5.288806609183008E-9 -3.365812338347615E-9 3.881192599721987E-9 1.445892382038359E-10
i 1.633661721282792E-15 -2.384561771122184E-15 -1.060878331769998E-11 -1.471634117684448E-10 1.445892382038359E-10 3.136648087895252E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.13   n/a E2021B55  
diameter diameter 10.181 km 1.200 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.082   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

216421 (2008 TD3)          Discovered 2008-Oct-01 by Tozzi, F. at Sierra Stars
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2008 TD3 = 1996 RJ27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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