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312472 (2008 SX216)
Classification: Jupiter Trojan          SPK-ID: 2312472
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05601554923169805 1.0361e-07  
a 5.239070103202795 3.2193e-07 au
q 4.945600713908521 5.1607e-07 au
i 7.725902016747603 1.0956e-05 deg
node 288.8273084219691 7.1826e-05 deg
peri 174.2835877473001 0.00014667 deg
M 265.4819657214215 0.00014132 deg
tp 2460150.484327329733
(2023-Jul-24.98432733)
0.001803 TDB
period 4380.056790204863
11.99
0.00040372
1.105e-06
d
yr
n .08219071515352708 7.5757e-09 deg/d
Q 5.532539492497068 3.3996e-07 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      7977 days (21.84 yr)  
   first obs. used      1996-10-08  
   last obs. used      2018-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55525  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:15:01  

Additional Information
 Earth MOID = 3.96258 au 
 Jupiter MOID = .259301 au 
 T_jup = 2.979 
[ 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 MPO455303  

312472 (2008 SX216)          Discovered 2008-Sep-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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