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JPL Small-Body Database Browser
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295315 (2008 GR131)
Classification: Jupiter Trojan          SPK-ID: 2295315
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05134138972094108 9.1207e-08  
a 5.187335677348953 1.9409e-07 au
q 4.921010654724839 5.4209e-07 au
i 29.66613150302977 1.2878e-05 deg
node 57.62736946413868 1.5227e-05 deg
peri 289.7522525293277 0.00014406 deg
M 250.7489804820851 0.00015106 deg
tp 2460310.097849686602
(2023-Dec-31.59784969)
0.0018457 TDB
period 4315.339371362733
11.81
0.00024219
6.631e-07
d
yr
n .08342333453285651 4.682e-09 deg/d
Q 5.453660699973068 2.0405e-07 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      6795 days (18.60 yr)  
   first obs. used      2001-09-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58712  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:41:32  

Additional Information
 Earth MOID = 4.02091 au 
 Jupiter MOID = .0595869 au 
 T_jup = 2.736 
[ 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 13.4   n/a MPO205166  
diameter diameter 14.342 km 1.097 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.037   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295315 (2008 GR131)          Discovered 2008-Apr-04 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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