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392193 (2009 SQ121)
Classification: Jupiter Trojan          SPK-ID: 2392193
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07287280323138358 9.4322e-08  
a 5.17928194605773 3.8917e-07 au
q 4.801853151922808 4.9968e-07 au
i 10.17204773662977 8.5088e-06 deg
node 1.68591364307162 4.1709e-05 deg
peri 124.190453485564 9.7255e-05 deg
M 224.7115011774684 0.0001034 deg
tp 2460618.435238976086
(2024-Nov-03.93523898)
0.0014026 TDB
period 4305.293436624236
11.79
0.00048525
1.329e-06
d
yr
n .08361799382535806 9.4245e-09 deg/d
Q 5.556710740192654 4.1753e-07 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      6018 days (16.48 yr)  
   first obs. used      2003-04-04  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51165  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:38  

Additional Information
 Earth MOID = 3.82946 au 
 Jupiter MOID = .428397 au 
 T_jup = 2.963 
[ 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 13.7   n/a MPO455783  

392193 (2009 SQ121)          Discovered 2009-Sep-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2009 SQ121 = 2014 EJ43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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