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487897 (2015 TH166)
Classification: Mars-crossing Asteroid          SPK-ID: 2487897
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2726029574082659 5.3103e-08  
a 2.244715469136052 1.4943e-08 au
q 1.632799393709481 1.1879e-07 au
i 9.376057812429012 1.1095e-05 deg
node 196.8443572146843 3.9092e-05 deg
peri 128.1735965318479 4.6333e-05 deg
M 174.5373452174462 2.2078e-05 deg
tp 2458404.939012745324
(2018-Oct-13.43901275)
7.3446e-05 TDB
period 1228.401607372749
3.36
1.2266e-05
3.358e-08
d
yr
n .2930637650091911 2.9264e-09 deg/d
Q 2.856631544562623 1.9017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      7261 days (19.88 yr)  
   first obs. used      1998-08-24  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 06:50:22  

Additional Information
 Earth MOID = .641909 au 
 Jupiter MOID = 2.5648 au 
 T_jup = 3.565 
[ 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 17.7   n/a MPO456352  

487897 (2015 TH166)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 TH166 = 1998 QO82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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