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66811 (1999 UA6)
Classification: Main-belt Asteroid          SPK-ID: 2066811
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1614041201534395 1.0694e-07  
a 2.755948232574309 4.0626e-08 au
q 2.311126832907226 2.7155e-07 au
i 9.538107542625545 8.1945e-06 deg
node 188.3509551883866 4.0447e-05 deg
peri 156.6029834572084 4.9067e-05 deg
M 227.1977017214722 3.6531e-05 deg
tp 2458016.964540156287
(2017-Sep-20.46454016)
0.00017983 JED
period 1671.109892923787
4.58
3.6951e-05
1.012e-07
d
yr
n .2154256889534303 4.7635e-09 deg/d
Q 3.200769632241392 4.7183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      6149 days (16.84 yr)  
   first obs. used      1998-05-23  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58204  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:22:48  

Additional Information
 Earth MOID = 1.30602 au 
 Jupiter MOID = 2.24651 au 
 T_jup = 3.305 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO272941  

66811 (1999 UA6)          Discovered 1999-Oct-18 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UA6 = 2001 BV51 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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