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312636 (2009 WG229)
Classification: Jupiter Trojan          SPK-ID: 2312636
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 .06401407394066684 8.7035e-08  
a 5.342235059047387 2.4231e-07 au
q 5.000256828969105 6.005e-07 au
i 3.628909289980061 7.7445e-06 deg
node 128.7734450278509 0.00016103 deg
peri 318.7655544194388 0.00018839 deg
M 275.6475257364185 0.00010606 deg
tp 2460057.264563894597
(2023-Apr-22.76456389)
0.0013721 TDB
period 4510.066199282845
12.35
0.00030685
8.401e-07
d
yr
n .07982144476221753 5.4307e-09 deg/d
Q 5.68421328912567 2.5782e-07 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      2000-01-05  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7116  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:52  

Additional Information
 Earth MOID = 4.01773 au 
 Jupiter MOID = .1883 au 
 T_jup = 2.992 
[ 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 MPO455304  

312636 (2009 WG229)          Discovered 2009-Nov-17 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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