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487891 (2015 TH149)
Classification: Main-belt Asteroid          SPK-ID: 2487891
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 .08438644866865924 1.0069e-07  
a 2.616375689215799 5.1869e-08 au
q 2.395589036419862 2.7044e-07 au
i 4.274482317738716 1.3256e-05 deg
node 4.337083140843551 8.2256e-05 deg
peri 96.88625093611758 0.0001638 deg
M 312.5497908559561 0.00012876 deg
tp 2459204.243712217538
(2020-Dec-20.74371222)
0.00055274 TDB
period 1545.7832056262
4.23
4.5967e-05
1.259e-07
d
yr
n .2328916491586304 6.9255e-09 deg/d
Q 2.837162342011736 5.6246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      4336 days (11.87 yr)  
   first obs. used      2007-11-19  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67283  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:46  

Additional Information
 Earth MOID = 1.41704 au 
 Jupiter MOID = 2.26523 au 
 T_jup = 3.398 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO419312  

487891 (2015 TH149)          Discovered 2009-Mar-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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