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215494 (2002 TH157)
Classification: Main-belt Asteroid          SPK-ID: 2215494
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0815432721460195 4.1229e-08  
a 2.603269636866439 1.9797e-08 au
q 2.390990512397969 1.1195e-07 au
i 14.35844655442737 5.1951e-06 deg
node 72.53059449701317 1.7745e-05 deg
peri 89.29504334869731 3.768e-05 deg
M 297.5426813771622 3.341e-05 deg
tp 2459266.669317552006
(2021-Feb-21.16931755)
0.00014306 TDB
period 1534.182965768321
4.20
1.75e-05
4.791e-08
d
yr
n .2346525857948837 2.6767e-09 deg/d
Q 2.815548761334908 2.1411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      7267 days (19.90 yr)  
   first obs. used      2000-03-04  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:24:02  

Additional Information
 Earth MOID = 1.45041 au 
 Jupiter MOID = 2.28776 au 
 T_jup = 3.365 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO413071  

215494 (2002 TH157)          Discovered 2002-Oct-05 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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