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312476 (2008 SJ277)
Classification: Jupiter Trojan          SPK-ID: 2312476
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03683663159271813 1.4123e-07  
a 5.306170394168753 3.1393e-07 au
q 5.110708950190571 8.5404e-07 au
i 24.15423636625756 1.2791e-05 deg
node 17.72104656935505 1.9693e-05 deg
peri 15.9644339132044 0.00015708 deg
M 320.0177556341154 0.00017257 deg
tp 2459496.332378648533
(2021-Oct-08.83237865)
0.0021676 TDB
period 4464.473146629535
12.22
0.0003962
1.085e-06
d
yr
n .08063661448423827 7.1561e-09 deg/d
Q 5.501631838146936 3.2549e-07 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      5169 days (14.15 yr)  
   first obs. used      2002-03-05  
   last obs. used      2016-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 10:53:22  

Additional Information
 Earth MOID = 4.11832 au 
 Jupiter MOID = .0271369 au 
 T_jup = 2.822 
[ 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 13.1   n/a MPO455303  
diameter diameter 13.965 km 1.497 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.048   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

312476 (2008 SJ277)          Discovered 2008-Sep-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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