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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518295287485368 5.981e-07  
a 2.546675151904476 6.5986e-08 au
q 2.160014663715211 1.5359e-06 au
i 13.00655036004523 9.3348e-06 deg
node 321.0462204907524 3.9292e-05 deg
peri 355.8036403694334 0.00029002 deg
M 27.2708203512953 0.00035233 deg
tp 2458488.051295894156
(2019-Jan-04.55129589)
0.0014539 TDB
period 1484.426685982731
4.06
5.7693e-05
1.58e-07
d
yr
n .2425178713098048 9.4256e-09 deg/d
Q 2.93333564009374 7.6004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      3949 days (10.81 yr)  
   first obs. used      2009-02-03  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 03:45:12  

Additional Information
 Earth MOID = 1.14611 au 
 Jupiter MOID = 2.3738 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457413.5 (2016-Jan-26.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1531896412446234 6.0278e-07  
q 2.156036248927975 1.5499e-06 au
tp 2457003.967668077542
(2014-Dec-12.46766808)
0.0014617 TDB
node 321.130593261218 3.9216e-05 deg
peri 355.8123783183531 0.00028798 deg
i 13.01537943744622 9.3199e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      3949 days (10.81 yr)  
   first obs. used      2009-02-03  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 03:45:12  

Additional Information
 Jupiter MOID = 2.3738 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.633419047161665E-13 -9.336405118936485E-13 8.703832931350585E-10 -3.384569880325288E-12 1.696229778968701E-10 -3.544080222414578E-12
q -9.336405118936485E-13 2.402063210692765E-12 -2.242988352477862E-9 8.714617869078216E-12 -4.370592725790595E-10 9.140890586055737E-12
tp 8.703832931350585E-10 -2.242988352477862E-9 2.136537482395922E-6 -8.249720896735821E-9 4.171545538456393E-7 -8.734405874039517E-9
node -3.384569880325288E-12 8.714617869078216E-12 -8.249720896735821E-9 1.537876378706039E-9 -3.076982563854359E-9 4.956954908467765E-11
peri 1.696229778968701E-10 -4.370592725790595E-10 4.171545538456393E-7 -3.076982563854359E-9 8.293222744490961E-8 -1.720962811591764E-9
i -3.544080222414578E-12 9.140890586055737E-12 -8.734405874039517E-9 4.956954908467765E-11 -1.720962811591764E-9 8.685965307888153E-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 16.9   n/a MPO399182  

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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