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392831 (2012 TJ308)
Classification: Main-belt Asteroid          SPK-ID: 2392831
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1756569845449208 6.0525e-08  
a 2.795835611256977 5.4003e-08 au
q 2.304727558500271 1.4926e-07 au
i 10.34299143441715 6.258e-06 deg
node 282.1742841022657 5.5408e-05 deg
peri 191.3428063150392 6.5897e-05 deg
M 253.5397484964847 4.4109e-05 deg
tp 2459901.452890272037
(2022-Nov-17.95289027)
0.00021949 TDB
period 1707.520299178807
4.67
4.9472e-05
1.354e-07
d
yr
n .210832047017616 6.1085e-09 deg/d
Q 3.286943664013683 6.3489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      5026 days (13.76 yr)  
   first obs. used      2007-09-18  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62308  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:34:28  

Additional Information
 Earth MOID = 1.32262 au 
 Jupiter MOID = 1.85545 au 
 T_jup = 3.281 
[ show covariance matrix ]

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 16.26   n/a MPO639082  

392831 (2012 TJ308)          Discovered 2009-Jan-20 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 TJ308 = 2009 BB185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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