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312471 (2008 ST153)
Classification: Jupiter Trojan          SPK-ID: 2312471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .09630420994074353 1.1281e-07  
a 5.23621112602721 2.4609e-07 au
q 4.731941950452229 7.5342e-07 au
i 11.10252459385519 1.0113e-05 deg
node 7.15162185887575 3.6287e-05 deg
peri 36.22409844370628 6.4171e-05 deg
M 317.140376555716 5.94e-05 deg
tp 2459521.538723196711
(2021-Nov-03.03872320)
0.00073634 TDB
period 4376.471963050622
11.98
0.00030853
8.447e-07
d
yr
n .08225803867576062 5.7989e-09 deg/d
Q 5.740480301602192 2.6979e-07 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      6722 days (18.40 yr)  
   first obs. used      2002-03-06  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5058  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 20:07:59  

Additional Information
 Earth MOID = 3.74756 au 
 Jupiter MOID = .110372 au 
 T_jup = 2.953 
[ 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 12.8   n/a MPO455303  
diameter diameter 14.680 km 0.709 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.075   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

312471 (2008 ST153)          Discovered 2008-Sep-22 by LINEAR at Socorro
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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