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347449 (2012 TW236)
Classification: Centaur          SPK-ID: 2347449
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5692520141868561 3.8185e-08  
a 6.968282289552175 2.9632e-07 au
q 3.001573560802002 2.4775e-07 au
i 11.95951506597673 9.1693e-06 deg
node 179.480575823288 3.5637e-05 deg
peri 326.4060134564753 3.699e-05 deg
M 107.3064409385081 8.1521e-06 deg
tp 2457197.825718085123
(2015-Jun-24.32571809)
9.3594e-05 TDB
period 6718.727554318039
18.39
0.00042856
1.173e-06
d
yr
n .05358157435162447 3.4177e-09 deg/d
Q 10.93499101830235 4.6499e-07 au
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      7001 days (19.17 yr)  
   first obs. used      1998-04-23  
   last obs. used      2017-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:43:26  

Additional Information
 Earth MOID = 2.02247 au 
 Jupiter MOID = .704245 au 
 T_jup = 2.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456987.5 (2014-Nov-26.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5718565126532918 3.7208e-08  
q 3.000398025968012 2.4318e-07 au
tp 2457203.923415575569
(2015-Jun-30.42341558)
8.9847e-05 TDB
node 180.3417604023976 3.5067e-05 deg
peri 326.0722580732651 3.6303e-05 deg
i 11.88646103538356 9.2687e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      7001 days (19.17 yr)  
   first obs. used      1998-04-23  
   last obs. used      2017-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:43:26  

Additional Information
 Jupiter MOID = .704245 au 
 T_jup = 2.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.384416849901964E-15 -7.897965293160095E-15 8.463627438071517E-13 -5.07607873285308E-15 6.423895760921476E-14 -4.088781411456694E-15
q -7.897965293160095E-15 5.91360703626849E-14 -7.02725576269569E-12 2.604497230850616E-14 -6.270935155032046E-13 2.04153870376682E-14
tp 8.463627438071517E-13 -7.02725576269569E-12 8.072489279169372E-9 2.348056238968536E-11 9.656441317173917E-10 3.560706956556691E-12
node -5.07607873285308E-15 2.604497230850616E-14 2.348056238968536E-11 1.229666876725196E-9 -1.200136044387873E-9 1.708929899079714E-10
peri 6.423895760921476E-14 -6.270935155032046E-13 9.656441317173917E-10 -1.200136044387873E-9 1.317918469029402E-9 -1.667071904186584E-10
i -4.088781411456694E-15 2.04153870376682E-14 3.560706956556691E-12 1.708929899079714E-10 -1.667071904186584E-10 8.590872215390855E-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 12.3   n/a MPO434189  

347449 (2012 TW236)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2012 TW236 = 1998 HO121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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