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358881 (2008 GK4)
Classification: Main-belt Asteroid          SPK-ID: 2358881
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797123835721846 6.8658e-08  
a 3.089663982446738 2.3391e-08 au
q 2.225446705479432 2.084e-07 au
i 17.85709214572856 8.1579e-06 deg
node 74.32932715906445 1.7169e-05 deg
peri 154.2960238930975 2.3686e-05 deg
M 78.21091685594435 1.2464e-05 deg
tp 2458569.546731998440
(2019-Mar-27.04673200)
6.6694e-05 TDB
period 1983.651166835413
5.43
2.2527e-05
6.168e-08
d
yr
n .1814835219109217 2.061e-09 deg/d
Q 3.953881259414043 2.9934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      6320 days (17.30 yr)  
   first obs. used      2002-03-19  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:39:47  

Additional Information
 Earth MOID = 1.22651 au 
 Jupiter MOID = 1.13598 au 
 T_jup = 3.092 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457536.5 (2016-May-28.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2787856288867184 6.8948e-08  
q 2.230062564554766 2.0929e-07 au
tp 2456584.234700763711
(2013-Oct-18.73470076)
6.2043e-05 TDB
node 74.34249964258989 1.7164e-05 deg
peri 154.4007632870803 2.3651e-05 deg
i 17.85427329010274 8.1551e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      6320 days (17.30 yr)  
   first obs. used      2002-03-19  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:39:47  

Additional Information
 Jupiter MOID = 1.13598 au 
 T_jup = 3.092 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.75388702399567E-15 -1.438690133367743E-14 2.325475775064125E-12 -3.126657299279097E-14 7.379331829912884E-13 -5.881040469283472E-15
q -1.438690133367743E-14 4.380412156613364E-14 -7.153361334343135E-12 9.764923178099643E-14 -2.220610364968094E-12 2.095476746322941E-14
tp 2.325475775064125E-12 -7.153361334343135E-12 3.849339487114445E-9 -2.523870549009124E-11 1.006880574016598E-9 7.563536788170079E-14
node -3.126657299279097E-14 9.764923178099643E-14 -2.523870549009124E-11 2.946019071984449E-10 -2.860843489222202E-10 2.359377736870886E-11
peri 7.379331829912884E-13 -2.220610364968094E-12 1.006880574016598E-9 -2.860843489222202E-10 5.593491735244993E-10 -2.156532376933383E-11
i -5.881040469283472E-15 2.095476746322941E-14 7.563536788170079E-14 2.359377736870886E-11 -2.156532376933383E-11 6.65061216880763E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO437516  

358881 (2008 GK4)          Discovered 2008-Apr-08 by Lowe, A. at Mayhill
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Alternate Designations
 2008 GK4 = 2005 VH83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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