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392208 (2009 SQ321)
Classification: Jupiter Trojan          SPK-ID: 2392208
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07316898952916066 2.2216e-07  
a 5.234203896900929 6.5948e-07 au
q 4.851222486775094 1.7361e-06 au
i 9.572024220230853 1.0328e-05 deg
node 62.8982272784089 8.2908e-05 deg
peri 344.3957412746244 0.00017477 deg
M 306.5008977575154 0.00017732 deg
tp 2459650.507510997784
(2022-Mar-12.00751100)
0.0022613 TDB
period 4373.955714220874
11.98
0.00082664
2.263e-06
d
yr
n .08230536007247304 1.5555e-08 deg/d
Q 5.617185307026766 7.0773e-07 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      3594 days (9.84 yr)  
   first obs. used      2009-09-21  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63092  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:08:39  

Additional Information
 Earth MOID = 3.86257 au 
 Jupiter MOID = .164263 au 
 T_jup = 2.967 
[ 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 14.2   n/a MPO494987  

392208 (2009 SQ321)          Discovered 2009-Sep-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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