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312633 (2009 WE5)
Classification: Jupiter Trojan          SPK-ID: 2312633
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05803587752315498 8.3988e-08  
a 5.215347321325101 1.9095e-07 au
q 4.912670062943963 5.7287e-07 au
i 13.36419121754721 6.1716e-06 deg
node 259.5247773450409 4.0893e-05 deg
peri 180.7159555877566 9.3536e-05 deg
M 294.3373826546944 8.664e-05 deg
tp 2459793.985454501913
(2022-Aug-02.48545450)
0.0010604 TDB
period 4350.340805309227
11.91
0.00023892
6.541e-07
d
yr
n .08275213738671924 4.5447e-09 deg/d
Q 5.51802457970624 2.0203e-07 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      7187 days (19.68 yr)  
   first obs. used      2001-02-18  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:46:38  

Additional Information
 Earth MOID = 3.92839 au 
 Jupiter MOID = .189574 au 
 T_jup = 2.942 
[ 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 13.2   n/a MPO494657  
diameter diameter 12.028 km 1.149 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.064   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

312633 (2009 WE5)          Discovered 2009-Nov-16 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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