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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03636387199670115 1.413e-07  
a 5.305431832969066 3.1643e-07 au
q 5.112505788907756 8.5346e-07 au
i 24.15500291552967 1.2793e-05 deg
node 17.71933587418807 1.969e-05 deg
peri 15.72680005403844 0.00015852 deg
M 287.943805070779 0.00017228 deg
tp 2459493.904959468170
(2021-Oct-06.40495947)
0.0021856 TDB
period 4463.54106991725
12.22
0.00039932
1.093e-06
d
yr
n .08065345302326837 7.2155e-09 deg/d
Q 5.498357877030377 3.2793e-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 = 4.11921 au 
 Jupiter MOID = .0275392 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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