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487946 (2015 TB239)
Classification: Outer Main-belt Asteroid          SPK-ID: 2487946
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2380887990870806 3.9699e-07  
a 3.21042342108779 3.0714e-07 au
q 2.446057564199961 1.0819e-06 au
i 24.28727906469024 1.587e-05 deg
node 288.5933420143273 3.2575e-05 deg
peri 80.63220844765095 0.00012856 deg
M 281.8549113205333 5.6857e-05 deg
tp 2459456.580062005532
(2021-Aug-30.08006201)
0.00030322 TDB
period 2101.076665169024
5.75
0.00030151
8.255e-07
d
yr
n .1713407254328053 2.4588e-08 deg/d
Q 3.974789277975619 3.8026e-07 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      2769 days (7.58 yr)  
   first obs. used      2009-06-19  
   last obs. used      2017-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .54759  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 00:11:45  

Additional Information
 Earth MOID = 1.57594 au 
 Jupiter MOID = 1.97689 au 
 T_jup = 3.012 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457179.5 (2015-Jun-06.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2397581619644827 3.8439e-07  
q 2.437752596805864 1.019e-06 au
tp 2457362.698937380276
(2015-Dec-06.19893738)
0.00051937 TDB
node 288.6338603960334 3.2603e-05 deg
peri 81.13514703797671 0.00012977 deg
i 24.28193610513584 1.5853e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      2769 days (7.58 yr)  
   first obs. used      2009-06-19  
   last obs. used      2017-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .54759  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 00:11:45  

Additional Information
 Jupiter MOID = 1.97689 au 
 T_jup = 3.012 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.477531739425229E-13 -3.886743992115912E-13 -1.921924126792841E-10 3.636391526026651E-13 -4.662689874520232E-11 -1.800921700279804E-12
q -3.886743992115912E-13 1.038330940871455E-12 5.042959898766722E-10 -9.247136701632125E-13 1.220392662935264E-10 4.805176752709281E-12
tp -1.921924126792841E-10 5.042959898766722E-10 2.69749304705416E-7 -5.24949488156784E-10 6.548332425996761E-8 2.390621141495706E-9
node 3.636391526026651E-13 -9.247136701632125E-13 -5.24949488156784E-10 1.06295489515501E-9 -1.095082456727361E-9 3.227614621202759E-10
peri -4.662689874520232E-11 1.220392662935264E-10 6.548332425996761E-8 -1.095082456727361E-9 1.684120732126643E-8 2.803324954823481E-10
i -1.800921700279804E-12 4.805176752709281E-12 2.390621141495706E-9 3.227614621202759E-10 2.803324954823481E-10 2.513300348229776E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a E2017B06  

487946 (2015 TB239)          Discovered 2009-Jun-19 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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