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213085 (1999 TL218)
Classification: Main-belt Asteroid          SPK-ID: 2213085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088405874267375 5.2498e-08  
a 2.443979134306077 1.1991e-08 au
q 1.933577096238907 1.2927e-07 au
i 1.596502557510606 3.6551e-06 deg
node 249.9652241562573 0.00022633 deg
peri 121.7928963095038 0.00022661 deg
M 207.0242077398364 1.1246e-05 deg
tp 2459793.513906355564
(2022-Aug-02.01390636)
4.5314e-05 TDB
period 1395.547642759923
3.82
1.027e-05
2.812e-08
d
yr
n .2579632460902885 1.8985e-09 deg/d
Q 2.954381172373247 1.4495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      7463 days (20.43 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:16  

Additional Information
 Earth MOID = .932819 au 
 Jupiter MOID = 2.51664 au 
 T_jup = 3.469 
[ 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 16.86   n/a E2021B55  

213085 (1999 TL218)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1999 TL218 = 2003 WK137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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