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487940 (2015 TC231)
Classification: Main-belt Asteroid          SPK-ID: 2487940
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1519316669560951 5.9413e-07  
a 2.547416067400384 6.5029e-08 au
q 2.160382897849503 1.5264e-06 au
i 13.00666422275384 9.2039e-06 deg
node 321.0374000957988 3.9214e-05 deg
peri 355.9201558835238 0.00028662 deg
M 124.1391586970144 0.00034744 deg
tp 2458488.400266894403
(2019-Jan-04.90026689)
0.0014382 TDB
period 1485.07453935604
4.07
5.6865e-05
1.557e-07
d
yr
n .2424120745859017 9.2822e-09 deg/d
Q 2.934449236951264 7.4908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      4006 days (10.97 yr)  
   first obs. used      2009-02-03  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63141  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:29:22  

Additional Information
 Earth MOID = 1.14734 au 
 Jupiter MOID = 2.37569 au 
 T_jup = 3.390 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457439.5 (2016-Feb-21.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1531926719514891 5.9741e-07  
q 2.155988280121781 1.5362e-06 au
tp 2457003.948417814434
(2014-Dec-12.44841781)
0.0014488 TDB
node 321.1301793380878 3.9147e-05 deg
peri 355.8058066013876 0.00028535 deg
i 13.01542746622041 9.1898e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      4006 days (10.97 yr)  
   first obs. used      2009-02-03  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63141  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:29:22  

Additional Information
 Jupiter MOID = 2.37569 au 
 T_jup = 3.390 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.569022793960792E-13 -9.17189489968653E-13 8.54818350173789E-10 -3.241935277769909E-12 1.665105740057745E-10 -3.447753518212022E-12
q -9.17189489968653E-13 2.359932490859859E-12 -2.203198203922298E-9 8.347971347188464E-12 -4.291015155821609E-10 8.89377361684126E-12
tp 8.54818350173789E-10 -2.203198203922298E-9 2.098907105180234E-6 -7.901114029146249E-9 4.096263829311271E-7 -8.499732427837791E-9
node -3.241935277769909E-12 8.347971347188464E-12 -7.901114029146249E-9 1.532489659094362E-9 -3.005053183385692E-9 4.618665417066544E-11
peri 1.665105740057745E-10 -4.291015155821609E-10 4.096263829311271E-7 -3.005053183385692E-9 8.142396015947447E-8 -1.67280355262796E-9
i -3.447753518212022E-12 8.89377361684126E-12 -8.499732427837791E-9 4.618665417066544E-11 -1.67280355262796E-9 8.445231991488258E-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 16.6   n/a MPO503658  

487940 (2015 TC231)          Discovered 2009-Feb-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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