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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746564346150943 6.5199e-08  
a 2.800639831122206 5.9654e-08 au
q 2.311490063577382 1.5874e-07 au
i 10.3629754150791 6.5463e-06 deg
node 282.25241614038 5.7544e-05 deg
peri 190.4508271722266 6.793e-05 deg
M 171.2096683086296 4.3525e-05 deg
tp 2458186.339358545449
(2018-Mar-08.83935855)
0.00019006 TDB
period 1711.923361683571
4.69
5.4696e-05
1.497e-07
d
yr
n .2102897875322889 6.7188e-09 deg/d
Q 3.28978959866703 7.0072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      4276 days (11.71 yr)  
   first obs. used      2007-09-18  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61395  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:16  

Additional Information
 Earth MOID = 1.32892 au 
 Jupiter MOID = 1.85399 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760940483049446 6.4925e-08  
q 2.30313169399818 1.5918e-07 au
tp 2458183.184525964911
(2018-Mar-05.68452596)
0.00018834 TDB
node 282.3006721630932 5.7644e-05 deg
peri 189.5668208610745 6.7901e-05 deg
i 10.3600915328688 6.5536e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      4276 days (11.71 yr)  
   first obs. used      2007-09-18  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61395  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:16  

Additional Information
 Jupiter MOID = 1.85399 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.215296557164787E-15 -1.000246388089092E-14 3.512419571106085E-12 -4.981949376438486E-14 5.611665718872726E-13 2.593784318975E-15
q -1.000246388089092E-14 2.533897657653684E-14 -3.997437959939096E-12 1.037944370875219E-13 -6.040636920040269E-13 -2.775236223779765E-15
tp 3.512419571106085E-12 -3.997437959939096E-12 3.54737805944693E-8 -1.066573976964791E-10 6.909483664735177E-9 1.093879588996987E-11
node -4.981949376438486E-14 1.037944370875219E-13 -1.066573976964791E-10 3.322773252336876E-9 -3.286771760400068E-9 -8.874071884673194E-11
peri 5.611665718872726E-13 -6.040636920040269E-13 6.909483664735177E-9 -3.286771760400068E-9 4.610592857002995E-9 8.917703128446474E-11
i 2.593784318975E-15 -2.775236223779765E-15 1.093879588996987E-11 -8.874071884673194E-11 8.917703128446474E-11 4.29490696080392E-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 16.2   n/a MPO434457  

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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