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295326 (2008 GQ143)
Classification: Jupiter Trojan          SPK-ID: 2295326
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076661619488234 7.1117e-08  
a 5.274489632645167 2.5093e-07 au
q 4.706605577659403 5.0122e-07 au
i 15.18396091796734 6.927e-06 deg
node 103.3131498938575 2.6918e-05 deg
peri 210.4225571172178 6.0666e-05 deg
M 251.0957137727793 6.4298e-05 deg
tp 2459938.979005730070
(2022-Dec-25.47900573)
0.00084214 TDB
period 4424.549838722379
12.11
0.00031574
8.644e-07
d
yr
n .08136420949525401 5.8063e-09 deg/d
Q 5.842373687630933 2.7795e-07 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      5630 days (15.41 yr)  
   first obs. used      2003-12-27  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:42:55  

Additional Information
 Earth MOID = 3.70106 au 
 Jupiter MOID = .423648 au 
 T_jup = 2.919 
[ 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 12.9   n/a MPO440400  
diameter diameter 12.499 km 1.301 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.065   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295326 (2008 GQ143)          Discovered 2008-Apr-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 GQ143 = 2004 AJ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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