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192899 (1999 XE146)
Classification: Main-belt Asteroid          SPK-ID: 2192899
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03415991369379816 4.0602e-08  
a 2.761367102312148 1.9601e-08 au
q 2.667039040420272 1.171e-07 au
i 7.673536541337445 4.9419e-06 deg
node 68.23499305049874 3.5646e-05 deg
peri 255.4345571493914 0.00010381 deg
M 304.6808605045335 0.00010112 deg
tp 2459458.047632417939
(2021-Aug-31.54763242)
0.00047146 TDB
period 1676.041032381863
4.59
1.7846e-05
4.886e-08
d
yr
n .2147918774329738 2.287e-09 deg/d
Q 2.855695164204025 2.0271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      7483 days (20.49 yr)  
   first obs. used      1999-11-28  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:18:01  

Additional Information
 Earth MOID = 1.66447 au 
 Jupiter MOID = 2.24783 au 
 T_jup = 3.327 
[ 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 15.82   n/a E2021B55  

192899 (1999 XE146)          Discovered 1999-Dec-07 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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