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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1082128638578181 6.6844e-08  
a 5.2743459784342 2.1429e-07 au
q 4.703593895130869 5.0037e-07 au
i 15.18386124728815 5.8247e-06 deg
node 103.3140257489969 2.5582e-05 deg
peri 210.426092321085 4.9114e-05 deg
M 283.7008283040788 4.7398e-05 deg
tp 2459938.210267240372
(2022-Dec-24.71026724)
0.00060079 TDB
period 4424.369081644699
12.11
0.00026964
7.382e-07
d
yr
n .08136753362044898 4.9588e-09 deg/d
Q 5.845098061737531 2.3748e-07 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      5964 days (16.33 yr)  
   first obs. used      2003-12-27  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:41:32  

Additional Information
 Earth MOID = 3.69886 au 
 Jupiter MOID = .425899 au 
 T_jup = 2.918 
[ 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 13.0   n/a MPO476295  
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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