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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07268364856503071 2.2314e-07  
a 5.235135632827863 6.5995e-07 au
q 4.854626874301132 1.7417e-06 au
i 9.572075747119836 1.0328e-05 deg
node 62.90450898654105 8.2897e-05 deg
peri 344.1095483413989 0.00017516 deg
M 273.7990121419038 0.00017239 deg
tp 2459648.111062595385
(2022-Mar-09.61106260)
0.0022662 TDB
period 4375.123672076537
11.98
0.0008273
2.265e-06
d
yr
n .08228338830685797 1.5559e-08 deg/d
Q 5.615644391354592 7.0791e-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 = 3.86547 au 
 Jupiter MOID = .160598 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 14.3   n/a MPO339277  

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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