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216883 (2008 QG41)
Classification: Jupiter Trojan          SPK-ID: 2216883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08784490804474521 7.0513e-08  
a 5.19915724238423 1.488e-07 au
q 4.742437752516816 4.7778e-07 au
i 7.772558177289258 7.7882e-06 deg
node 183.5170684866475 3.321e-05 deg
peri 229.96758627 5.4377e-05 deg
M 331.9053180513774 4.5051e-05 deg
tp 2459734.424340260476
(2022-Jun-03.92434026)
0.00054825 TDB
period 4330.099294814611
11.86
0.00018589
5.089e-07
d
yr
n .08313897106957982 3.5692e-09 deg/d
Q 5.655876732251643 1.6187e-07 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      6916 days (18.93 yr)  
   first obs. used      2002-02-05  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:39  

Additional Information
 Earth MOID = 3.75933 au 
 Jupiter MOID = .0586857 au 
 T_jup = 2.974 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457813.5 (2017-Mar-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08605538026588849 7.0685e-08  
q 4.756504714507219 4.7734e-07 au
tp 2459731.579116684059
(2022-Jun-01.07911668)
0.00055784 TDB
node 183.5716362623254 3.3216e-05 deg
peri 229.29848582284 5.5149e-05 deg
i 7.769012473142015 7.7838e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      6916 days (18.93 yr)  
   first obs. used      2002-02-05  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:39  

Additional Information
 Jupiter MOID = .0586857 au 
 T_jup = 2.974 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.99640327472631E-15 -3.313049997479182E-14 -2.296865842668678E-11 -3.929974684645956E-15 -1.427413818204268E-12 -3.588460113169554E-15
q -3.313049997479182E-14 2.278535211362567E-13 1.511756153405487E-10 2.778035554415595E-14 8.95249608895865E-12 2.633537417995743E-14
tp -2.296865842668678E-11 1.511756153405487E-10 3.111884965190231E-7 3.111982806672941E-11 2.421356711822875E-8 2.390965369396638E-11
node -3.929974684645956E-15 2.778035554415595E-14 3.111982806672941E-11 1.103333268992606E-9 -1.090883526173887E-9 -7.623617956297841E-11
peri -1.427413818204268E-12 8.95249608895865E-12 2.421356711822875E-8 -1.090883526173887E-9 3.041361956541495E-9 7.704917558421901E-11
i -3.588460113169554E-15 2.633537417995743E-14 2.390965369396638E-11 -7.623617956297841E-11 7.704917558421901E-11 6.058689647192678E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.23   n/a E2021B55  

216883 (2008 QG41)          Discovered 2008-Aug-21 by Spacewatch at Kitt Peak
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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