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442632 (2012 TC18)
Classification: Main-belt Asteroid          SPK-ID: 2442632
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2002927054518948 4.7966e-08  
a 2.273278092391476 1.7846e-08 au
q 1.817957073021864 1.0965e-07 au
i 2.39091673145407 5.8598e-06 deg
node 28.85753022084713 0.00014326 deg
peri 236.5456710207791 0.0001443 deg
M 177.2315963700891 1.6877e-05 deg
tp 2458384.166284989951
(2018-Sep-22.66628499)
5.656e-05 TDB
period 1251.922015870664
3.43
1.4742e-05
4.036e-08
d
yr
n .2875578474028461 3.3861e-09 deg/d
Q 2.728599111761087 2.142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      8310 days (22.75 yr)  
   first obs. used      1997-02-03  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57627  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:11:13  

Additional Information
 Earth MOID = .803538 au 
 Jupiter MOID = 2.35908 au 
 T_jup = 3.583 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457296.5 (2015-Oct-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2002455502304068 4.7881e-08  
q 1.818004624664997 1.0946e-07 au
tp 2457132.941752709740
(2015-Apr-20.44175271)
5.5159e-05 TDB
node 28.8710731162293 0.00014316 deg
peri 236.6276452482235 0.00014421 deg
i 2.392157073505203 5.8614e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      8310 days (22.75 yr)  
   first obs. used      1997-02-03  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57627  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:11:13  

Additional Information
 Jupiter MOID = 2.35908 au 
 T_jup = 3.583 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.292567612828043E-15 -5.196067054714607E-15 3.017329703681184E-13 -2.522750433578583E-15 2.577485652662533E-14 -3.969141521303522E-15
q -5.196067054714607E-15 1.19811142402579E-14 -7.106249948276607E-13 2.894161514404653E-15 -5.75587404935974E-14 9.295328229854386E-15
tp 3.017329703681184E-13 -7.106249948276607E-13 3.042521547103391E-9 4.937608667997549E-12 9.802155341293004E-10 -5.283017159479963E-12
node -2.522750433578583E-15 2.894161514404653E-15 4.937608667997549E-12 2.049613277631412E-8 -2.047626052240805E-8 -1.627383159441912E-10
peri 2.577485652662533E-14 -5.75587404935974E-14 9.802155341293004E-10 -2.047626052240805E-8 2.079572355517378E-8 1.610597422661947E-10
i -3.969141521303522E-15 9.295328229854386E-15 -5.283017159479963E-12 -1.627383159441912E-10 1.610597422661947E-10 3.435603326073656E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO440833  

442632 (2012 TC18)          Discovered 2012-Sep-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 TC18 = 2015 LT39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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