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312458 (2008 QS42)
Classification: Jupiter Trojan          SPK-ID: 2312458
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0522359702600539 9.7233e-08  
a 5.255686690579943 3.8458e-07 au
q 4.981150796914648 8.1243e-07 au
i 3.729643211138061 8.2097e-06 deg
node 229.1420873149019 0.00017073 deg
peri 195.3205615622786 0.00023508 deg
M 299.9764262980442 0.00017614 deg
tp 2459734.273420836828
(2022-Jun-03.77342084)
0.0022155 TDB
period 4400.911428781698
12.05
0.00048305
1.323e-06
d
yr
n .08180123727226625 8.9786e-09 deg/d
Q 5.530222584245238 4.0467e-07 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      4050 days (11.09 yr)  
   first obs. used      2008-08-24  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66607  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:02  

Additional Information
 Earth MOID = 3.99466 au 
 Jupiter MOID = .0485331 au 
 T_jup = 2.993 
[ 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 13.9   n/a MPO418615  

312458 (2008 QS42)          Discovered 2008-Aug-24 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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