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487961 (2015 TW290)
Classification: Main-belt Asteroid          SPK-ID: 2487961
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09643854301685469 6.4596e-08  
a 2.520921800668787 3.2005e-08 au
q 2.277807775152863 1.5629e-07 au
i 14.59799393892415 6.4101e-06 deg
node 267.6183038330306 2.3948e-05 deg
peri 358.2111852225586 4.1177e-05 deg
M 167.2799682136615 3.5872e-05 deg
tp 2458321.172924379779
(2018-Jul-21.67292438)
0.00014053 TDB
period 1461.966724616503
4.00
2.7841e-05
7.622e-08
d
yr
n .2462436346452643 4.6893e-09 deg/d
Q 2.76403582618471 3.5091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      6435 days (17.62 yr)  
   first obs. used      2002-06-13  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:29:22  

Additional Information
 Earth MOID = 1.26192 au 
 Jupiter MOID = 2.33136 au 
 T_jup = 3.405 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457733.5 (2016-Dec-11.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09716785152611326 6.4324e-08  
q 2.275206993545139 1.5564e-07 au
tp 2458322.185536792302
(2018-Jul-22.68553679)
0.00014001 TDB
node 267.6546407213093 2.3972e-05 deg
peri 358.4564088302031 4.1134e-05 deg
i 14.59226888019777 6.4081e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      6435 days (17.62 yr)  
   first obs. used      2002-06-13  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:29:22  

Additional Information
 Jupiter MOID = 2.33136 au 
 T_jup = 3.405 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.137598235986755E-15 -9.854461846876288E-15 -1.286949974228836E-12 2.038571040372867E-14 -5.078670044723652E-13 1.915606783312884E-14
q -9.854461846876288E-15 2.422253162111876E-14 4.683809729335406E-12 -5.369135970854019E-14 1.52061169141886E-12 -4.734752494198984E-14
tp -1.286949974228836E-12 4.683809729335406E-12 1.960183273185099E-8 -9.604833851888768E-11 4.684962761580674E-9 -3.779366874809352E-11
node 2.038571040372867E-14 -5.369135970854019E-14 -9.604833851888768E-11 5.746459133134922E-10 -5.785419096214601E-10 -4.085393065105311E-11
peri -5.078670044723652E-13 1.52061169141886E-12 4.684962761580674E-9 -5.785419096214601E-10 1.692042193325539E-9 2.990634823174653E-11
i 1.915606783312884E-14 -4.734752494198984E-14 -3.779366874809352E-11 -4.085393065105311E-11 2.990634823174653E-11 4.106432508680669E-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 16.4   n/a MPO456353  

487961 (2015 TW290)          Discovered 2011-Oct-23 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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