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226181 (2002 TD157)
Classification: Main-belt Asteroid          SPK-ID: 2226181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799912240474952 4.2083e-08  
a 2.205557867912493 8.787e-09 au
q 1.808576807559339 9.4156e-08 au
i 7.692455147037403 3.6262e-06 deg
node 102.0508112530054 3.3006e-05 deg
peri 273.947907018136 3.4599e-05 deg
M 260.2263227245525 1.2526e-05 deg
tp 2459728.080964528655
(2022-May-28.58096453)
4.2913e-05 TDB
period 1196.399195559072
3.28
7.1497e-06
1.957e-08
d
yr
n .3009029104468544 1.7982e-09 deg/d
Q 2.602538928265646 1.0369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      8399 days (23.00 yr)  
   first obs. used      1998-06-29  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:40:59  

Additional Information
 Earth MOID = .828907 au 
 Jupiter MOID = 2.89165 au 
 T_jup = 3.629 
[ 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 16.84   n/a E2021B55  

226181 (2002 TD157)          Discovered 2002-Oct-05 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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