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173357 (1999 YG8)
Classification: Main-belt Asteroid          SPK-ID: 2173357
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08935673891017282 5.9586e-08  
a 2.487168858511775 1.5853e-08 au
q 2.264923560196225 1.4867e-07 au
i 7.933342560456578 4.6852e-06 deg
node 104.4129932803317 5.0406e-05 deg
peri 7.152195876480537 8.7322e-05 deg
M 71.20161164091505 7.0154e-05 deg
tp 2458717.136663813653
(2019-Aug-21.63666381)
0.00027839 TDB
period 1432.703539655075
3.92
1.3698e-05
3.75e-08
d
yr
n .2512731978638585 2.4024e-09 deg/d
Q 2.709414156827324 1.727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      7353 days (20.13 yr)  
   first obs. used      1999-12-17  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:02:51  

Additional Information
 Earth MOID = 1.28181 au 
 Jupiter MOID = 2.3788 au 
 T_jup = 3.456 
[ 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 16.4   n/a MPO454190  

173357 (1999 YG8)          Discovered 1999-Dec-27 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1999 YG8 = 2003 YB123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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