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181921 (1999 TQ79)
Classification: Main-belt Asteroid          SPK-ID: 2181921
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08822923259119439 5.2887e-08  
a 3.131497229766129 2.789e-08 au
q 2.855207632322412 1.6867e-07 au
i 5.532471298894596 6.0014e-06 deg
node 30.07763572215244 5.022e-05 deg
peri 188.9027012686374 5.8162e-05 deg
M 87.28628566502039 2.8867e-05 deg
tp 2458709.739062959144
(2019-Aug-14.23906296)
0.00016234 TDB
period 2024.074412018535
5.54
2.7041e-05
7.403e-08
d
yr
n .1778590736893834 2.3761e-09 deg/d
Q 3.407786827209846 3.0351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      10720 days (29.35 yr)  
   first obs. used      1991-02-22  
   last obs. used      2020-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50397  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:36  

Additional Information
 Earth MOID = 1.84663 au 
 Jupiter MOID = 1.56137 au 
 T_jup = 3.200 
[ 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 15.99   n/a E2021B55  

181921 (1999 TQ79)          Discovered 1999-Oct-11 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1999 TQ79 = 1999 UV62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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