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66666 (1999 TL9)
Classification: Main-belt Asteroid          SPK-ID: 2066666
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .18559585264657 6.1623e-08  
a 2.604551745094409 7.9187e-09 au
q 2.121157743201501 1.6014e-07 au
i 9.693353525166026 6.1705e-06 deg
node 21.91268727458873 1.8886e-05 deg
peri 8.777241761978759 2.2588e-05 deg
M 11.28770832497392 9.6388e-06 deg
tp 2459152.360542706534
(2020-Oct-29.86054271)
4.1133e-05 TDB
period 1535.316481141241
4.20
7.0018e-06
1.917e-08
d
yr
n .2344793431334774 1.0693e-09 deg/d
Q 3.087945746987318 9.3883e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1205  
   data-arc span      10184 days (27.88 yr)  
   first obs. used      1993-03-24  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49785  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:04  

Additional Information
 Earth MOID = 1.12572 au 
 Jupiter MOID = 2.36926 au 
 T_jup = 3.368 
[ 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 15.08   n/a E2021B10  

66666 (1999 TL9)          Discovered 1999-Oct-07 by Korlevic, K., Juric, M. at Visnjan
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TL9 = 2001 DX18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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