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312478 (2008 SN293)
Classification: Jupiter Trojan          SPK-ID: 2312478
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08926642163958125 9.5436e-08  
a 5.246237002683202 2.6882e-07 au
q 4.777924198380511 7.0514e-07 au
i 9.403704427792563 6.959e-06 deg
node 137.1795451415423 4.1469e-05 deg
peri 264.9116566491348 5.9535e-05 deg
M 328.9256996697892 4.7579e-05 deg
tp 2459379.351616236881
(2021-Jun-13.85161624)
0.00059011 TDB
period 4389.047553636488
12.02
0.00033734
9.236e-07
d
yr
n .08202235122782542 6.3042e-09 deg/d
Q 5.714549806985894 2.9281e-07 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      6372 days (17.45 yr)  
   first obs. used      2002-04-15  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6318  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:19  

Additional Information
 Earth MOID = 3.80296 au 
 Jupiter MOID = .0695276 au 
 T_jup = 2.965 
[ 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 13.2   n/a MPO455303  
diameter diameter 11.045 km 0.566 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.091   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

312478 (2008 SN293)          Discovered 2008-Sep-29 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2008 SN293 = 2009 WT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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