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JPL Small-Body Database Browser
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295634 (2008 SJ253)
Classification: Jupiter Trojan          SPK-ID: 2295634
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054684237809562 1.0732e-07  
a 5.1849364366318 2.4699e-07 au
q 4.638089363255797 7.3601e-07 au
i 23.80545680178946 1.2707e-05 deg
node 340.8509414601194 1.7202e-05 deg
peri 59.10084913818949 6.2647e-05 deg
M 292.9967064488889 6.4265e-05 deg
tp 2459403.114926249999
(2021-Jul-07.61492625)
0.00079743 TDB
period 4312.345828635885
11.81
0.00030814
8.436e-07
d
yr
n .0834812453141955 5.9651e-09 deg/d
Q 5.731783510007804 2.7304e-07 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      8421 days (23.06 yr)  
   first obs. used      1996-09-13  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:02:07  

Additional Information
 Earth MOID = 3.70673 au 
 Jupiter MOID = .0146555 au 
 T_jup = 2.820 
[ 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 12.7   n/a MPO455185  
diameter diameter 13.644 km 0.476 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.087   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295634 (2008 SJ253)          Discovered 2008-Sep-21 by CSS at Catalina
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 SJ253 = 1996 RD31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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