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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .17990792696349 5.1454e-08  
a 2.205547855209459 9.3285e-09 au
q 1.808752312759953 1.1316e-07 au
i 7.692476155104245 3.9006e-06 deg
node 102.0508250697831 3.9941e-05 deg
peri 273.9705453409677 4.1587e-05 deg
M 201.2129320850389 1.271e-05 deg
tp 2459728.198407428671
(2022-May-28.69840743)
4.3946e-05 TDB
period 1196.391048520787
3.28
7.5903e-06
2.078e-08
d
yr
n .3009049594989052 1.909e-09 deg/d
Q 2.602343397658964 1.1007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      7974 days (21.83 yr)  
   first obs. used      1998-06-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:34:48  

Additional Information
 Earth MOID = .828478 au 
 Jupiter MOID = 2.89088 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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