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308741 (2006 JJ8)
Classification: Main-belt Asteroid          SPK-ID: 2308741
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171345620729649 3.8613e-08  
a 2.406777598821594 2.1248e-08 au
q 1.994386797193294 9.7047e-08 au
i 3.34744748837906 4.7864e-06 deg
node 65.84645546911291 0.00013231 deg
peri 199.88155807103 0.0001343 deg
M 247.4164006283175 2.664e-05 deg
tp 2459427.005853822774
(2021-Jul-31.50585382)
0.00010343 TDB
period 1363.805280992091
3.73
1.806e-05
4.945e-08
d
yr
n .263967301650365 3.4956e-09 deg/d
Q 2.819168400449894 2.4889e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6053 days (16.57 yr)  
   first obs. used      2002-03-16  
   last obs. used      2018-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:00:12  

Additional Information
 Earth MOID = .978958 au 
 Jupiter MOID = 2.26121 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457010.5 (2014-Dec-19.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719100414832346 3.8497e-08  
q 1.992687367302198 9.6761e-08 au
tp 2456700.019928467253
(2014-Feb-11.51992847)
9.2063e-05 TDB
node 65.87156630011894 0.00013235 deg
peri 199.9453385391122 0.00013434 deg
i 3.347484127351345 4.786e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6053 days (16.57 yr)  
   first obs. used      2002-03-16  
   last obs. used      2018-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:00:12  

Additional Information
 Jupiter MOID = 2.26121 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.482034982017264E-15 -3.664766514721917E-15 3.326247528731218E-14 1.42279407184982E-15 -4.236248324746466E-14 -1.188005715654738E-15
q -3.664766514721917E-15 9.362661715723144E-15 1.258437036254361E-13 6.05095293580619E-15 1.746171182718617E-13 3.0464620146383E-15
tp 3.326247528731218E-14 1.258437036254361E-13 8.475626451596575E-9 2.384312909236839E-10 2.214623250395677E-9 -1.115987540540981E-11
node 1.42279407184982E-15 6.05095293580619E-15 2.384312909236839E-10 1.751675968825439E-8 -1.741815128682713E-8 -2.078402753583E-10
peri -4.236248324746466E-14 1.746171182718617E-13 2.214623250395677E-9 -1.741815128682713E-8 1.804767503609486E-8 2.043461545520702E-10
i -1.188005715654738E-15 3.0464620146383E-15 -1.115987540540981E-11 -2.078402753583E-10 2.043461545520702E-10 2.290535725008289E-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 17.3   n/a MPO455274  

308741 (2006 JJ8)          Discovered 2006-May-01 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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