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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05176581694752928 9.6964e-08  
a 5.254063622131389 3.8554e-07 au
q 4.982082726437463 8.1118e-07 au
i 3.729734448901022 8.2102e-06 deg
node 229.1388247224284 0.00017075 deg
peri 195.5457496520035 0.00023623 deg
M 266.9770609393138 0.00017509 deg
tp 2459737.155804713444
(2022-Jun-06.65580471)
0.0022355 TDB
period 4398.87294283283
12.04
0.00048418
1.326e-06
d
yr
n .08183914486244825 9.0079e-09 deg/d
Q 5.526044517825316 4.0549e-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 = 3.99532 au 
 Jupiter MOID = .047412 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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