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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1354467069501743 8.4361e-08  
a 5.143822106094404 1.3044e-07 au
q 4.447108340686407 4.7901e-07 au
i 7.679978276457121 5.5962e-06 deg
node 239.1105567890226 5.8324e-05 deg
peri 130.0934679957397 6.2202e-05 deg
M 14.46377551053068 1.9306e-05 deg
tp 2459029.298916273669
(2020-Jun-28.79891627)
0.00023116 TDB
period 4261.155055718771
11.67
0.00016209
4.438e-07
d
yr
n .08448413523860264 3.2136e-09 deg/d
Q 5.840535871502402 1.4811e-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 = 3.45218 au 
 Jupiter MOID = .0952879 au 
 T_jup = 2.964 
[ 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 13.13   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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