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382261 (2012 TQ94)
Classification: Main-belt Asteroid          SPK-ID: 2382261
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 .02983457522239952 7.8759e-08  
a 3.095328612753314 4.6019e-08 au
q 3.00298079841808 2.341e-07 au
i 10.65556215438811 7.5368e-06 deg
node 291.4918534164443 3.8137e-05 deg
peri 210.2069834351095 0.00011342 deg
M 36.19566401468638 0.00010473 deg
tp 2458800.508002660354
(2019-Nov-13.00800266)
0.00057931 TDB
period 1989.108944459753
5.45
4.4358e-05
1.214e-07
d
yr
n .180985561903336 4.0361e-09 deg/d
Q 3.187676427088548 4.7391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      5858 days (16.04 yr)  
   first obs. used      2004-04-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:41:55  

Additional Information
 Earth MOID = 2.02178 au 
 Jupiter MOID = 1.9035 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457530.5 (2016-May-22.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0310512742639376 7.8774e-08  
q 2.999092098497508 2.3429e-07 au
tp 2456811.243617497674
(2014-Jun-02.74361750)
0.00056393 TDB
node 291.5162661101535 3.8137e-05 deg
peri 210.3178012598105 0.00010942 deg
i 10.65582626948467 7.5369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      5858 days (16.04 yr)  
   first obs. used      2004-04-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:41:55  

Additional Information
 Jupiter MOID = 1.9035 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.205283738589449E-15 -1.815314744178013E-14 6.39027097487781E-12 1.868392739907249E-14 1.27495520617519E-12 7.025085807604146E-15
q -1.815314744178013E-14 5.489306222080361E-14 -2.536661897784818E-11 -5.668345483177627E-14 -4.841711542618368E-12 -1.953672906313804E-14
tp 6.39027097487781E-12 -2.536661897784818E-11 3.180126535396049E-7 1.317495953052954E-10 5.788523196319783E-8 5.61311123547653E-11
node 1.868392739907249E-14 -5.668345483177627E-14 1.317495953052954E-10 1.454447381590131E-9 -1.404820948214206E-9 1.073674094706977E-10
peri 1.27495520617519E-12 -4.841711542618368E-12 5.788523196319783E-8 -1.404820948214206E-9 1.197240267712326E-8 -9.50284571168552E-11
i 7.025085807604146E-15 -1.953672906313804E-14 5.61311123547653E-11 1.073674094706977E-10 -9.50284571168552E-11 5.680538815127896E-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 MPO423413  
rotation period rot_per 6.327 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

382261 (2012 TQ94)          Discovered 2007-Dec-04 by CSS at Catalina
Reference: Last Updated: 2013-12-19

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