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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 ]

[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797124387385616 5.6676e-08  
a 3.089663983989062 2.3359e-08 au
q 2.225446536144781 1.7117e-07 au
i 17.85708977134397 7.0302e-06 deg
node 74.32932452819628 1.7008e-05 deg
peri 154.2960405291511 2.1171e-05 deg
M 78.2109079467629 1.07e-05 deg
tp 2458569.546780766606
(2019-Mar-27.04678077)		 5.679e-05 TDB
period 1983.651168320736
5.43		 2.2496e-05
6.159e-08		 d
yr
n .18148352177503 2.0581e-09 deg/d
Q 3.953881431833343 2.9893e-08 au
   Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      6787 days (18.58 yr)  
   first obs. used      2002-03-19  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53519  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:23:29  

Additional Information
 Earth MOID = 1.22651 au 
 Jupiter MOID = 1.13598 au 
 T_jup = 3.092 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457715.5 (2016-Nov-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2789440990021839 5.6902e-08  
q 2.229280423518548 1.718e-07 au
tp 2458570.147626340961
(2019-Mar-27.64762634)		 5.6806e-05 TDB
node 74.3396332572301 1.7001e-05 deg
peri 154.416320500732 2.1141e-05 deg
i 17.85653419747619 7.0288e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      6787 days (18.58 yr)  
   first obs. used      2002-03-19  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53519  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:23:29  

Additional Information
 Jupiter MOID = 1.13598 au 
 T_jup = 3.092 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.237826628810194E-15 -9.732472961062636E-15 1.38148329337776E-12 -1.865459039968646E-14 3.321360674099661E-13 -1.528934028541133E-15
q -9.732472961062636E-15 2.951445431865758E-14 -3.885972753467568E-12 5.848033805145835E-14 -9.749534488345909E-13 6.809420688924021E-15
tp 1.38148329337776E-12 -3.885972753467568E-12 3.226871202242168E-9 -1.562344764884351E-11 7.255065128481461E-10 2.330733871987545E-12
node -1.865459039968646E-14 5.848033805145835E-14 -1.562344764884351E-11 2.890272021022732E-10 -2.782586684008453E-10 1.424204640498631E-11
peri 3.321360674099661E-13 -9.749534488345909E-13 7.255065128481461E-10 -2.782586684008453E-10 4.469529232372088E-10 -1.291063824575956E-11
i -1.528934028541133E-15 6.809420688924021E-15 2.330733871987545E-12 1.424204640498631E-11 -1.291063824575956E-11 4.940465460574844E-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

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