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(2008 GM2)
Classification: Apollo [NEO]          SPK-ID: 3408244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580264687569317 2.1252e-05  
a 1.05328149565289 2.1623e-05 au
q .8868351402878438 4.0558e-05 au
i 4.077114353120386 0.0045207 deg
node 194.854897255192 0.016208 deg
peri 278.0449853072605 0.0006505 deg
M 342.6431226214706 0.19641 deg
tp 2459219.536372880319
(2021-Jan-05.03637288)
0.21483 TDB
period 394.8345135739849
1.08
0.012159
3.329e-05
d
yr
n .9117743956609368 2.8077e-05 deg/d
Q 1.219727851017935 2.504e-05 au
  Orbit Determination Parameters
   # obs. used (total)      54  
   data-arc span      8 days  
   first obs. used      2008-04-06  
   last obs. used      2008-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .43506  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:03:47  

Additional Information
 Earth MOID = .00171724 au 
 Jupiter MOID = 3.83632 au 
 T_jup = 5.826 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454565.5 (2008-Apr-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158497161034038 5.4378e-05  
q .8851291987392367 3.2394e-05 au
tp 2454490.825299993569
(2008-Jan-25.32529999)
0.0043212 TDB
node 195.2196076391992 8.4329e-05 deg
peri 278.0106797301607 0.00081097 deg
i 4.126412565123627 0.0015118 deg
  Orbit Determination Parameters
   # obs. used (total)      54  
   data-arc span      8 days  
   first obs. used      2008-04-06  
   last obs. used      2008-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .43506  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:03:47  

Additional Information
 Jupiter MOID = 3.83632 au 
 T_jup = 5.826 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.956993289697165E-9 -1.760880554102859E-9 2.347749881216002E-7 3.535535686091915E-9 4.036589926190546E-8 8.220335166869207E-8
q -1.760880554102859E-9 1.049339491347592E-9 -1.39655544647448E-7 -2.148339721591765E-9 -2.375708154472593E-8 -4.893899036384866E-8
tp 2.347749881216002E-7 -1.39655544647448E-7 1.867266612006447E-5 2.724806726645299E-7 3.263059796844315E-6 6.529067104257656E-6
node 3.535535686091915E-9 -2.148339721591765E-9 2.724806726645299E-7 7.11146152810805E-9 3.218728379366218E-8 9.747087788630472E-8
peri 4.036589926190546E-8 -2.375708154472593E-8 3.263059796844315E-6 3.218728379366218E-8 6.576660508270083E-7 1.126866817008878E-6
i 8.220335166869207E-8 -4.893899036384866E-8 6.529067104257656E-6 9.747087788630472E-8 1.126866817008878E-6 2.285622198411229E-6

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 28.3   n/a MPO138179  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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