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312612 (2009 SE74)
Classification: Jupiter Trojan          SPK-ID: 2312612
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03538674762804605 1.1733e-07  
a 5.137328780184071 2.5143e-07 au
q 4.9555354231574 5.1126e-07 au
i 6.800282890798014 6.32e-06 deg
node 85.16217133214278 8.5557e-05 deg
peri 70.89243060699822 0.00017362 deg
M 206.2620665814551 0.00016067 deg
tp 2460816.780858704692
(2025-May-21.28085870)
0.0020018 TDB
period 4253.08897156553
11.64
0.00031223
8.548e-07
d
yr
n .08464436140574945 6.214e-09 deg/d
Q 5.319122137210742 2.6033e-07 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6427 days (17.60 yr)  
   first obs. used      2002-02-22  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60274  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:51  

Additional Information
 Earth MOID = 3.97309 au 
 Jupiter MOID = .0184394 au 
 T_jup = 2.985 
[ 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 13.5   n/a MPO455304  

312612 (2009 SE74)          Discovered 2009-Sep-17 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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