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312796 (2010 WQ21)
Classification: Jupiter Trojan          SPK-ID: 2312796
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 .02804593642921368 1.3982e-07  
a 5.229294208291471 3.4281e-07 au
q 5.082633755356072 1.015e-06 au
i 2.637773121224808 7.6462e-06 deg
node 62.65078957105823 0.00024503 deg
peri 319.3802813516425 0.00030026 deg
M 330.291967415197 0.00017812 deg
tp 2459360.941204737063
(2021-May-26.44120474)
0.0021714 TDB
period 4367.802995198012
11.96
0.0004295
1.176e-06
d
yr
n .08242129976919428 8.1048e-09 deg/d
Q 5.375954661226868 3.5243e-07 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      5598 days (15.33 yr)  
   first obs. used      2004-05-28  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54466  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:12:47  

Additional Information
 Earth MOID = 4.0858 au 
 Jupiter MOID = .0620725 au 
 T_jup = 2.997 
[ 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 13.6   n/a MPO455306  

312796 (2010 WQ21)          Discovered 2008-Sep-04 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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